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前端之路001-<DOCTYPE> 标签的深度剖解以及使用选择

2013-01-17 
前端之路001-!DOCTYPE 标签的深度剖析以及使用选择文章转自:http://www.cnblogs.com/gumgum/archive/201

前端之路001-<!DOCTYPE> 标签的深度剖析以及使用选择

文章转自:
http://www.cnblogs.com/gumgum/archive/2011/09/30/2196752.html

<!DOCTYPE> 标签的深度剖析以及使用选择
前言:

???? 今天被问道“有没有仔细了解过<!DOCTYPE>标签?”,愣了一下,因为一开始在W3cschool上看到过建议使用XHTML Transitional DTD,之后就很听话地把Dreamweaver的HTML文档类型默认设置为XHTML 1.0 Transitional。之后就理所当然地一直用到现在了。人这东西还真是,越长大就越懒了,很多东西都被潜意识地当成了理所当然。既然已经被问及,就去找了找资料,总结了一下,权当做笔记吧~~

<!DOCTYPE>的定义:

???? <!DOCTYPE>声明位于文档中的最前面的位置,处于<html>标签之前。此标签可告知浏览器文档使用哪种HTML或XHTML规范。

该标签可声明三种DTD类型,分别表示严格版本、过渡版本以及基于框架的HTML版本。(假如文档中的标记不遵循doctype声明所指定的DTD,这个文档除了不能通过代码校验之外,还有可能无法在浏览器中正确显示。)


<!DOCTYPE>的用法:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

解析:在上面的声明中,声明了文档的根元素是 html,它在公共标识符被定义为 "-//W3C//DTD XHTML 1.0 Strict//EN" 的 DTD 中进行了定义。浏览器将明白如何寻找匹配此公共标识符的 DTD。如果找不到,浏览器将使用公共标识符后面的 URL 作为寻找 DTD 的位置。

???? -?? :?? 表示组织名称未注册。Internet 工程任务组(IETF)和万维网协会(W3C)并非注册的 ISO 组织。

????????????? +为默认,表示组织名称已注册。

DTD? :?? 指定公开文本类,即所引用的对象类型。 默认为DTD。

HTML :?? 指定公开文本描述,即对所引用的公开文本的唯一描述性名称。后面可附带版本号。默认为HTML。

URL? :? 指定所引用对象的位置。

? Strict:排除所有 W3C 专家希望逐步淘汰的代表性属性和元素。


三种HTML文档类型:

HTML 4.01 规定了三种文档类型:Strict、Transitional 以及 Frameset。

a ) 如果需要干净的标记,免于表现层的混乱,用HTML Strict DTD类型:

??? <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" " http://www.w3.org/TR/html4/strict.dtd">

b )Transitional DTD 可包含 W3C 所期望移入样式表的呈现属性和元素. 如果用户使用了不支持层叠样式表(CSS)的浏览器以至于你不得不使用 HTML 的呈现特性时,用???? Transitional DTD 类型:

??? <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" " http://www.w3.org/TR/html4/loose.dtd">

c ) Frameset DTD 被用于带有框架的文档。除 frameset 元素取代了 body 元素之外,Frameset DTD 等同于 Transitional DTD:

??? <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" " http://www.w3.org/TR/html4/frameset.dtd">

三种 XML 文档类型:

XHTML 1.0 规定了三种 XML 文档类型:Strict、Transitional 以及 Frameset。

a ) 如果需要干净的标记,免于表现层的混乱,用XHTML Strict DTD类型:

???? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

b )Transitional DTD 可包含 W3C 所期望移入样式表的呈现属性和元素. 如果用户使用了不支持层叠样式表(CSS)的浏览器以至于你不得不使用 HTML 的呈现特性时,用???? Transitional DTD 类型:

??? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

c ) Frameset DTD 被用于带有框架的文档。除 frameset 元素取代了 body 元素之外,Frameset DTD 等同于 Transitional DTD:

??? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">


选择正确的doctype:

为了获得正确的doctype声明,关键就是让dtd与文档所遵循的标准对应。

例如,假定文档遵循的是xhtml 1.0 strict标准,文档的doctype声明就应该引用相应的dtd。

另一方面,如果doctype声明指定的是xhtml dtd,但文档包含的是旧式风格的html标记,就是不恰当的;类似地,如果doctype声明指定的是html dtd,但文档包含的是

xhtml 1.0 strict标记,同样是不恰当的。

如果没有指定有效的doctype声明,大多数浏览器都会使用一个内建的默认dtd。在这种情况下, 浏览器会用内建的dtd来试着显示你所指定的标记(不过这是页面写得太糟糕的时候的做法)。

看了一下京东、淘宝、还有博客园,用的都是这个(本人也一直都是用的这个):

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

但是发现百度跟谷歌用的是“<!doctype html>”,就再仔细查了一下资料,发现HTML5也是直接用的这个,不过是因为 HTML 5 不基于 SGML,因此不需要对 DTD 进行

引用,但是需要 doctype 来规范浏览器的行为(让浏览器按照它们应该的方式来运行)。

建议在以后都直接用“<!doctype html>”,用<!doctype html>的话就会开启浏览器的标准兼容模式,在标准兼容模式下,不能保证与其它版本(IE6之前的,直接忽略吧),的 Internet Explorer 保持兼容,文档的渲染行为也许与将来的 Internet Explorer 不同,但也请大家放心地使用吧~~


--------------------------
现在淘宝 网易 的首页是用的是
<!DOCTYPE html>

京东商城 新浪
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">。

?

HTML:

??? HTML 4.01 Strict DTD

?

<!--    This is HTML 4.01 Strict DTD, which excludes the presentation     attributes and elements that W3C expects to phase out as     support for style sheets matures. Authors should use the Strict    DTD when possible, but may use the Transitional DTD when support    for presentation attribute and elements is required.        HTML 4 includes mechanisms for style sheets, scripting,    embedding objects, improved support for right to left and mixed    direction text, and enhancements to forms for improved    accessibility for people with disabilities.          Draft: $Date: 1999/12/24 23:37:48 $          Authors:              Dave Raggett <dsr@w3.org>              Arnaud Le Hors <lehors@w3.org>              Ian Jacobs <ij@w3.org>    Further information about HTML 4.01 is available at:        http://www.w3.org/TR/1999/REC-html401-19991224    The HTML 4.01 specification includes additional    syntactic constraints that cannot be expressed within    the DTDs.--><!--    Typical usage:    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"            "http://www.w3.org/TR/html4/strict.dtd">    <html>    <head>    ...    </head>    <body>    ...    </body>    </html>    The URI used as a system identifier with the public identifier allows    the user agent to download the DTD and entity sets as needed.    The FPI for the Transitional HTML 4.01 DTD is:        "-//W3C//DTD HTML 4.01 Transitional//EN"    This version of the transitional DTD is:        http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd    If you are writing a document that includes frames, use     the following FPI:        "-//W3C//DTD HTML 4.01 Frameset//EN"    This version of the frameset DTD is:        http://www.w3.org/TR/1999/REC-html401-19991224/frameset.dtd    Use the following (relative) URIs to refer to     the DTDs and entity definitions of this specification:    "strict.dtd"    "loose.dtd"    "frameset.dtd"    "HTMLlat1.ent"    "HTMLsymbol.ent"    "HTMLspecial.ent"--><!--================== Imported Names ====================================--><!-- Feature Switch for frameset documents --><!ENTITY % HTML.Frameset "IGNORE"><!ENTITY % ContentType "CDATA"    -- media type, as per [RFC2045]    --><!ENTITY % ContentTypes "CDATA"    -- comma-separated list of media types, as per [RFC2045]    --><!ENTITY % Charset "CDATA"    -- a character encoding, as per [RFC2045]    --><!ENTITY % Charsets "CDATA"    -- a space-separated list of character encodings, as per [RFC2045]    --><!ENTITY % LanguageCode "NAME"    -- a language code, as per [RFC1766]    --><!ENTITY % Character "CDATA"    -- a single character from [ISO10646]     --><!ENTITY % LinkTypes "CDATA"    -- space-separated list of link types    --><!ENTITY % MediaDesc "CDATA"    -- single or comma-separated list of media descriptors    --><!ENTITY % URI "CDATA"    -- a Uniform Resource Identifier,       see [URI]    --><!ENTITY % Datetime "CDATA" -- date and time information. ISO date format --><!ENTITY % Script "CDATA" -- script expression --><!ENTITY % StyleSheet "CDATA" -- style sheet data --><!ENTITY % Text "CDATA"><!-- Parameter Entities --><!ENTITY % head.misc "SCRIPT|STYLE|META|LINK|OBJECT" -- repeatable head elements --><!ENTITY % heading "H1|H2|H3|H4|H5|H6"><!ENTITY % list "UL | OL"><!ENTITY % preformatted "PRE"><!--================ Character mnemonic entities =========================--><!ENTITY % HTMLlat1 PUBLIC   "-//W3C//ENTITIES Latin1//EN//HTML"   "HTMLlat1.ent">%HTMLlat1;<!ENTITY % HTMLsymbol PUBLIC   "-//W3C//ENTITIES Symbols//EN//HTML"   "HTMLsymbol.ent">%HTMLsymbol;<!ENTITY % HTMLspecial PUBLIC   "-//W3C//ENTITIES Special//EN//HTML"   "HTMLspecial.ent">%HTMLspecial;<!--=================== Generic Attributes ===============================--><!ENTITY % coreattrs "id          ID             #IMPLIED  -- document-wide unique id --  class       CDATA          #IMPLIED  -- space-separated list of classes --  style       %StyleSheet;   #IMPLIED  -- associated style info --  title       %Text;         #IMPLIED  -- advisory title --"  ><!ENTITY % i18n "lang        %LanguageCode; #IMPLIED  -- language code --  dir         (ltr|rtl)      #IMPLIED  -- direction for weak/neutral text --"  ><!ENTITY % events "onclick     %Script;       #IMPLIED  -- a pointer button was clicked --  ondblclick  %Script;       #IMPLIED  -- a pointer button was double clicked--  onmousedown %Script;       #IMPLIED  -- a pointer button was pressed down --  onmouseup   %Script;       #IMPLIED  -- a pointer button was released --  onmouseover %Script;       #IMPLIED  -- a pointer was moved onto --  onmousemove %Script;       #IMPLIED  -- a pointer was moved within --  onmouseout  %Script;       #IMPLIED  -- a pointer was moved away --  onkeypress  %Script;       #IMPLIED  -- a key was pressed and released --  onkeydown   %Script;       #IMPLIED  -- a key was pressed down --  onkeyup     %Script;       #IMPLIED  -- a key was released --"  ><!-- Reserved Feature Switch --><!ENTITY % HTML.Reserved "IGNORE"><!-- The following attributes are reserved for possible future use --><![ %HTML.Reserved; [<!ENTITY % reserved "datasrc     %URI;          #IMPLIED  -- a single or tabular Data Source --  datafld     CDATA          #IMPLIED  -- the property or column name --  dataformatas (plaintext|html) plaintext -- text or html --"  >]]><!ENTITY % reserved ""><!ENTITY % attrs "%coreattrs; %i18n; %events;"><!--=================== Text Markup ======================================--><!ENTITY % fontstyle "TT | I | B | BIG | SMALL"><!ENTITY % phrase "EM | STRONG | DFN | CODE |                   SAMP | KBD | VAR | CITE | ABBR | ACRONYM" ><!ENTITY % special   "A | IMG | OBJECT | BR | SCRIPT | MAP | Q | SUB | SUP | SPAN | BDO"><!ENTITY % formctrl "INPUT | SELECT | TEXTAREA | LABEL | BUTTON"><!-- %inline; covers inline or "text-level" elements --><!ENTITY % inline "#PCDATA | %fontstyle; | %phrase; | %special; | %formctrl;"><!ELEMENT (%fontstyle;|%phrase;) - - (%inline;)*><!ATTLIST (%fontstyle;|%phrase;)  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT (SUB|SUP) - - (%inline;)*    -- subscript, superscript --><!ATTLIST (SUB|SUP)  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT SPAN - - (%inline;)*         -- generic language/style container --><!ATTLIST SPAN  %attrs;                              -- %coreattrs, %i18n, %events --  %reserved;       -- reserved for possible future use --  ><!ELEMENT BDO - - (%inline;)*          -- I18N BiDi over-ride --><!ATTLIST BDO  %coreattrs;                          -- id, class, style, title --  lang        %LanguageCode; #IMPLIED  -- language code --  dir         (ltr|rtl)      #REQUIRED -- directionality --  ><!ELEMENT BR - O EMPTY                 -- forced line break --><!ATTLIST BR  %coreattrs;                          -- id, class, style, title --  ><!--================== HTML content models ===============================--><!--    HTML has two basic content models:        %inline;     character level elements and text strings        %block;      block-like elements e.g. paragraphs and lists--><!ENTITY % block     "P | %heading; | %list; | %preformatted; | DL | DIV | NOSCRIPT |      BLOCKQUOTE | FORM | HR | TABLE | FIELDSET | ADDRESS"><!ENTITY % flow "%block; | %inline;"><!--=================== Document Body ====================================--><!ELEMENT BODY O O (%block;|SCRIPT)+ +(INS|DEL) -- document body --><!ATTLIST BODY  %attrs;                              -- %coreattrs, %i18n, %events --  onload          %Script;   #IMPLIED  -- the document has been loaded --  onunload        %Script;   #IMPLIED  -- the document has been removed --  ><!ELEMENT ADDRESS - - (%inline;)* -- information on author --><!ATTLIST ADDRESS  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT DIV - - (%flow;)*            -- generic language/style container --><!ATTLIST DIV  %attrs;                              -- %coreattrs, %i18n, %events --  %reserved;                           -- reserved for possible future use --  ><!--================== The Anchor Element ================================--><!ENTITY % Shape "(rect|circle|poly|default)"><!ENTITY % Coords "CDATA" -- comma-separated list of lengths --><!ELEMENT A - - (%inline;)* -(A)       -- anchor --><!ATTLIST A  %attrs;                              -- %coreattrs, %i18n, %events --  charset     %Charset;      #IMPLIED  -- char encoding of linked resource --  type        %ContentType;  #IMPLIED  -- advisory content type --  name        CDATA          #IMPLIED  -- named link end --  href        %URI;          #IMPLIED  -- URI for linked resource --  hreflang    %LanguageCode; #IMPLIED  -- language code --  rel         %LinkTypes;    #IMPLIED  -- forward link types --  rev         %LinkTypes;    #IMPLIED  -- reverse link types --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  shape       %Shape;        rect      -- for use with client-side image maps --  coords      %Coords;       #IMPLIED  -- for use with client-side image maps --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  ><!--================== Client-side image maps ============================--><!-- These can be placed in the same document or grouped in a     separate document although this isn't yet widely supported --><!ELEMENT MAP - - ((%block;) | AREA)+ -- client-side image map --><!ATTLIST MAP  %attrs;                              -- %coreattrs, %i18n, %events --  name        CDATA          #REQUIRED -- for reference by usemap --  ><!ELEMENT AREA - O EMPTY               -- client-side image map area --><!ATTLIST AREA  %attrs;                              -- %coreattrs, %i18n, %events --  shape       %Shape;        rect      -- controls interpretation of coords --  coords      %Coords;       #IMPLIED  -- comma-separated list of lengths --  href        %URI;          #IMPLIED  -- URI for linked resource --  nohref      (nohref)       #IMPLIED  -- this region has no action --  alt         %Text;         #REQUIRED -- short description --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  ><!--================== The LINK Element ==================================--><!--  Relationship values can be used in principle:   a) for document specific toolbars/menus when used      with the LINK element in document head e.g.        start, contents, previous, next, index, end, help   b) to link to a separate style sheet (rel=stylesheet)   c) to make a link to a script (rel=script)   d) by stylesheets to control how collections of      html nodes are rendered into printed documents   e) to make a link to a printable version of this document      e.g. a postscript or pdf version (rel=alternate media=print)--><!ELEMENT LINK - O EMPTY               -- a media-independent link --><!ATTLIST LINK  %attrs;                              -- %coreattrs, %i18n, %events --  charset     %Charset;      #IMPLIED  -- char encoding of linked resource --  href        %URI;          #IMPLIED  -- URI for linked resource --  hreflang    %LanguageCode; #IMPLIED  -- language code --  type        %ContentType;  #IMPLIED  -- advisory content type --  rel         %LinkTypes;    #IMPLIED  -- forward link types --  rev         %LinkTypes;    #IMPLIED  -- reverse link types --  media       %MediaDesc;    #IMPLIED  -- for rendering on these media --  ><!--=================== Images ===========================================--><!-- Length defined in strict DTD for cellpadding/cellspacing --><!ENTITY % Length "CDATA" -- nn for pixels or nn% for percentage length --><!ENTITY % MultiLength "CDATA" -- pixel, percentage, or relative --><![ %HTML.Frameset; [<!ENTITY % MultiLengths "CDATA" -- comma-separated list of MultiLength -->]]><!ENTITY % Pixels "CDATA" -- integer representing length in pixels --><!-- To avoid problems with text-only UAs as well as    to make image content understandable and navigable    to users of non-visual UAs, you need to provide   a description with ALT, and avoid server-side image maps --><!ELEMENT IMG - O EMPTY                -- Embedded image --><!ATTLIST IMG  %attrs;                              -- %coreattrs, %i18n, %events --  src         %URI;          #REQUIRED -- URI of image to embed --  alt         %Text;         #REQUIRED -- short description --  longdesc    %URI;          #IMPLIED  -- link to long description                                          (complements alt) --  name        CDATA          #IMPLIED  -- name of image for scripting --  height      %Length;       #IMPLIED  -- override height --  width       %Length;       #IMPLIED  -- override width --  usemap      %URI;          #IMPLIED  -- use client-side image map --  ismap       (ismap)        #IMPLIED  -- use server-side image map --  ><!-- USEMAP points to a MAP element which may be in this document  or an external document, although the latter is not widely supported --><!--==================== OBJECT ======================================--><!--  OBJECT is used to embed objects as part of HTML pages   PARAM elements should precede other content. SGML mixed content  model technicality precludes specifying this formally ...--><!ELEMENT OBJECT - - (PARAM | %flow;)* -- generic embedded object --><!ATTLIST OBJECT  %attrs;                              -- %coreattrs, %i18n, %events --  declare     (declare)      #IMPLIED  -- declare but don't instantiate flag --  classid     %URI;          #IMPLIED  -- identifies an implementation --  codebase    %URI;          #IMPLIED  -- base URI for classid, data, archive--  data        %URI;          #IMPLIED  -- reference to object's data --  type        %ContentType;  #IMPLIED  -- content type for data --  codetype    %ContentType;  #IMPLIED  -- content type for code --  archive     CDATA          #IMPLIED  -- space-separated list of URIs --  standby     %Text;         #IMPLIED  -- message to show while loading --  height      %Length;       #IMPLIED  -- override height --  width       %Length;       #IMPLIED  -- override width --  usemap      %URI;          #IMPLIED  -- use client-side image map --  name        CDATA          #IMPLIED  -- submit as part of form --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  %reserved;                           -- reserved for possible future use --  ><!ELEMENT PARAM - O EMPTY              -- named property value --><!ATTLIST PARAM  id          ID             #IMPLIED  -- document-wide unique id --  name        CDATA          #REQUIRED -- property name --  value       CDATA          #IMPLIED  -- property value --  valuetype   (DATA|REF|OBJECT) DATA   -- How to interpret value --  type        %ContentType;  #IMPLIED  -- content type for value                                          when valuetype=ref --  ><!--=================== Horizontal Rule ==================================--><!ELEMENT HR - O EMPTY -- horizontal rule --><!ATTLIST HR  %attrs;                              -- %coreattrs, %i18n, %events --  ><!--=================== Paragraphs =======================================--><!ELEMENT P - O (%inline;)*            -- paragraph --><!ATTLIST P  %attrs;                              -- %coreattrs, %i18n, %events --  ><!--=================== Headings =========================================--><!--  There are six levels of headings from H1 (the most important)  to H6 (the least important).--><!ELEMENT (%heading;)  - - (%inline;)* -- heading --><!ATTLIST (%heading;)  %attrs;                              -- %coreattrs, %i18n, %events --  ><!--=================== Preformatted Text ================================--><!-- excludes markup for images and changes in font size --><!ENTITY % pre.exclusion "IMG|OBJECT|BIG|SMALL|SUB|SUP"><!ELEMENT PRE - - (%inline;)* -(%pre.exclusion;) -- preformatted text --><!ATTLIST PRE  %attrs;                              -- %coreattrs, %i18n, %events --  ><!--===================== Inline Quotes ==================================--><!ELEMENT Q - - (%inline;)*            -- short inline quotation --><!ATTLIST Q  %attrs;                              -- %coreattrs, %i18n, %events --  cite        %URI;          #IMPLIED  -- URI for source document or msg --  ><!--=================== Block-like Quotes ================================--><!ELEMENT BLOCKQUOTE - - (%block;|SCRIPT)+ -- long quotation --><!ATTLIST BLOCKQUOTE  %attrs;                              -- %coreattrs, %i18n, %events --  cite        %URI;          #IMPLIED  -- URI for source document or msg --  ><!--=================== Inserted/Deleted Text ============================--><!-- INS/DEL are handled by inclusion on BODY --><!ELEMENT (INS|DEL) - - (%flow;)*      -- inserted text, deleted text --><!ATTLIST (INS|DEL)  %attrs;                              -- %coreattrs, %i18n, %events --  cite        %URI;          #IMPLIED  -- info on reason for change --  datetime    %Datetime;     #IMPLIED  -- date and time of change --  ><!--=================== Lists ============================================--><!-- definition lists - DT for term, DD for its definition --><!ELEMENT DL - - (DT|DD)+              -- definition list --><!ATTLIST DL  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT DT - O (%inline;)*           -- definition term --><!ELEMENT DD - O (%flow;)*             -- definition description --><!ATTLIST (DT|DD)  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT OL - - (LI)+                 -- ordered list --><!ATTLIST OL  %attrs;                              -- %coreattrs, %i18n, %events --  ><!-- Unordered Lists (UL) bullet styles --><!ELEMENT UL - - (LI)+                 -- unordered list --><!ATTLIST UL  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT LI - O (%flow;)*             -- list item --><!ATTLIST LI  %attrs;                              -- %coreattrs, %i18n, %events --  ><!--================ Forms ===============================================--><!ELEMENT FORM - - (%block;|SCRIPT)+ -(FORM) -- interactive form --><!ATTLIST FORM  %attrs;                              -- %coreattrs, %i18n, %events --  action      %URI;          #REQUIRED -- server-side form handler --  method      (GET|POST)     GET       -- HTTP method used to submit the form--  enctype     %ContentType;  "application/x-www-form-urlencoded"  accept      %ContentTypes; #IMPLIED  -- list of MIME types for file upload --  name        CDATA          #IMPLIED  -- name of form for scripting --  onsubmit    %Script;       #IMPLIED  -- the form was submitted --  onreset     %Script;       #IMPLIED  -- the form was reset --  accept-charset %Charsets;  #IMPLIED  -- list of supported charsets --  ><!-- Each label must not contain more than ONE field --><!ELEMENT LABEL - - (%inline;)* -(LABEL) -- form field label text --><!ATTLIST LABEL  %attrs;                              -- %coreattrs, %i18n, %events --  for         IDREF          #IMPLIED  -- matches field ID value --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  ><!ENTITY % InputType  "(TEXT | PASSWORD | CHECKBOX |    RADIO | SUBMIT | RESET |    FILE | HIDDEN | IMAGE | BUTTON)"   ><!-- attribute name required for all but submit and reset --><!ELEMENT INPUT - O EMPTY              -- form control --><!ATTLIST INPUT  %attrs;                              -- %coreattrs, %i18n, %events --  type        %InputType;    TEXT      -- what kind of widget is needed --  name        CDATA          #IMPLIED  -- submit as part of form --  value       CDATA          #IMPLIED  -- Specify for radio buttons and checkboxes --  checked     (checked)      #IMPLIED  -- for radio buttons and check boxes --  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  readonly    (readonly)     #IMPLIED  -- for text and passwd --  size        CDATA          #IMPLIED  -- specific to each type of field --  maxlength   NUMBER         #IMPLIED  -- max chars for text fields --  src         %URI;          #IMPLIED  -- for fields with images --  alt         CDATA          #IMPLIED  -- short description --  usemap      %URI;          #IMPLIED  -- use client-side image map --  ismap       (ismap)        #IMPLIED  -- use server-side image map --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  onselect    %Script;       #IMPLIED  -- some text was selected --  onchange    %Script;       #IMPLIED  -- the element value was changed --  accept      %ContentTypes; #IMPLIED  -- list of MIME types for file upload --  %reserved;                           -- reserved for possible future use --  ><!ELEMENT SELECT - - (OPTGROUP|OPTION)+ -- option selector --><!ATTLIST SELECT  %attrs;                              -- %coreattrs, %i18n, %events --  name        CDATA          #IMPLIED  -- field name --  size        NUMBER         #IMPLIED  -- rows visible --  multiple    (multiple)     #IMPLIED  -- default is single selection --  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  onchange    %Script;       #IMPLIED  -- the element value was changed --  %reserved;                           -- reserved for possible future use --  ><!ELEMENT OPTGROUP - - (OPTION)+ -- option group --><!ATTLIST OPTGROUP  %attrs;                              -- %coreattrs, %i18n, %events --  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  label       %Text;         #REQUIRED -- for use in hierarchical menus --  ><!ELEMENT OPTION - O (#PCDATA)         -- selectable choice --><!ATTLIST OPTION  %attrs;                              -- %coreattrs, %i18n, %events --  selected    (selected)     #IMPLIED  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  label       %Text;         #IMPLIED  -- for use in hierarchical menus --  value       CDATA          #IMPLIED  -- defaults to element content --  ><!ELEMENT TEXTAREA - - (#PCDATA)       -- multi-line text field --><!ATTLIST TEXTAREA  %attrs;                              -- %coreattrs, %i18n, %events --  name        CDATA          #IMPLIED  rows        NUMBER         #REQUIRED  cols        NUMBER         #REQUIRED  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  readonly    (readonly)     #IMPLIED  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  onselect    %Script;       #IMPLIED  -- some text was selected --  onchange    %Script;       #IMPLIED  -- the element value was changed --  %reserved;                           -- reserved for possible future use --  ><!--  #PCDATA is to solve the mixed content problem,  per specification only whitespace is allowed there! --><!ELEMENT FIELDSET - - (#PCDATA,LEGEND,(%flow;)*) -- form control group --><!ATTLIST FIELDSET  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT LEGEND - - (%inline;)*       -- fieldset legend --><!ATTLIST LEGEND  %attrs;                              -- %coreattrs, %i18n, %events --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  ><!ELEMENT BUTTON - -     (%flow;)* -(A|%formctrl;|FORM|FIELDSET)     -- push button --><!ATTLIST BUTTON  %attrs;                              -- %coreattrs, %i18n, %events --  name        CDATA          #IMPLIED  value       CDATA          #IMPLIED  -- sent to server when submitted --  type        (button|submit|reset) submit -- for use as form button --  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  %reserved;                           -- reserved for possible future use --  ><!--======================= Tables =======================================--><!-- IETF HTML table standard, see [RFC1942] --><!-- The BORDER attribute sets the thickness of the frame around the table. The default units are screen pixels. The FRAME attribute specifies which parts of the frame around the table should be rendered. The values are not the same as CALS to avoid a name clash with the VALIGN attribute. The value "border" is included for backwards compatibility with <TABLE BORDER> which yields frame=border and border=implied For <TABLE BORDER=1> you get border=1 and frame=implied. In this case, it is appropriate to treat this as frame=border for backwards compatibility with deployed browsers.--><!ENTITY % TFrame "(void|above|below|hsides|lhs|rhs|vsides|box|border)"><!-- The RULES attribute defines which rules to draw between cells: If RULES is absent then assume:     "none" if BORDER is absent or BORDER=0 otherwise "all"--><!ENTITY % TRules "(none | groups | rows | cols | all)">  <!-- horizontal placement of table relative to document --><!ENTITY % TAlign "(left|center|right)"><!-- horizontal alignment attributes for cell contents --><!ENTITY % cellhalign  "align      (left|center|right|justify|char) #IMPLIED   char       %Character;    #IMPLIED  -- alignment char, e.g. char=':' --   charoff    %Length;       #IMPLIED  -- offset for alignment char --"  ><!-- vertical alignment attributes for cell contents --><!ENTITY % cellvalign  "valign     (top|middle|bottom|baseline) #IMPLIED"  ><!ELEMENT TABLE - -     (CAPTION?, (COL*|COLGROUP*), THEAD?, TFOOT?, TBODY+)><!ELEMENT CAPTION  - - (%inline;)*     -- table caption --><!ELEMENT THEAD    - O (TR)+           -- table header --><!ELEMENT TFOOT    - O (TR)+           -- table footer --><!ELEMENT TBODY    O O (TR)+           -- table body --><!ELEMENT COLGROUP - O (COL)*          -- table column group --><!ELEMENT COL      - O EMPTY           -- table column --><!ELEMENT TR       - O (TH|TD)+        -- table row --><!ELEMENT (TH|TD)  - O (%flow;)*       -- table header cell, table data cell--><!ATTLIST TABLE                        -- table element --  %attrs;                              -- %coreattrs, %i18n, %events --  summary     %Text;         #IMPLIED  -- purpose/structure for speech output--  width       %Length;       #IMPLIED  -- table width --  border      %Pixels;       #IMPLIED  -- controls frame width around table --  frame       %TFrame;       #IMPLIED  -- which parts of frame to render --  rules       %TRules;       #IMPLIED  -- rulings between rows and cols --  cellspacing %Length;       #IMPLIED  -- spacing between cells --  cellpadding %Length;       #IMPLIED  -- spacing within cells --  %reserved;                           -- reserved for possible future use --  datapagesize CDATA         #IMPLIED  -- reserved for possible future use --  ><!ATTLIST CAPTION  %attrs;                              -- %coreattrs, %i18n, %events --  ><!--COLGROUP groups a set of COL elements. It allows you to groupseveral semantically related columns together.--><!ATTLIST COLGROUP  %attrs;                              -- %coreattrs, %i18n, %events --  span        NUMBER         1         -- default number of columns in group --  width       %MultiLength;  #IMPLIED  -- default width for enclosed COLs --  %cellhalign;                         -- horizontal alignment in cells --  %cellvalign;                         -- vertical alignment in cells --  ><!-- COL elements define the alignment properties for cells in one or more columns. The WIDTH attribute specifies the width of the columns, e.g.     width=64        width in screen pixels     width=0.5*      relative width of 0.5 The SPAN attribute causes the attributes of one COL element to apply to more than one column.--><!ATTLIST COL                          -- column groups and properties --  %attrs;                              -- %coreattrs, %i18n, %events --  span        NUMBER         1         -- COL attributes affect N columns --  width       %MultiLength;  #IMPLIED  -- column width specification --  %cellhalign;                         -- horizontal alignment in cells --  %cellvalign;                         -- vertical alignment in cells --  ><!--    Use THEAD to duplicate headers when breaking table    across page boundaries, or for static headers when    TBODY sections are rendered in scrolling panel.    Use TFOOT to duplicate footers when breaking table    across page boundaries, or for static footers when    TBODY sections are rendered in scrolling panel.    Use multiple TBODY sections when rules are needed    between groups of table rows.--><!ATTLIST (THEAD|TBODY|TFOOT)          -- table section --  %attrs;                              -- %coreattrs, %i18n, %events --  %cellhalign;                         -- horizontal alignment in cells --  %cellvalign;                         -- vertical alignment in cells --  ><!ATTLIST TR                           -- table row --  %attrs;                              -- %coreattrs, %i18n, %events --  %cellhalign;                         -- horizontal alignment in cells --  %cellvalign;                         -- vertical alignment in cells --  ><!-- Scope is simpler than headers attribute for common tables --><!ENTITY % Scope "(row|col|rowgroup|colgroup)"><!-- TH is for headers, TD for data, but for cells acting as both use TD --><!ATTLIST (TH|TD)                      -- header or data cell --  %attrs;                              -- %coreattrs, %i18n, %events --  abbr        %Text;         #IMPLIED  -- abbreviation for header cell --  axis        CDATA          #IMPLIED  -- comma-separated list of related headers--  headers     IDREFS         #IMPLIED  -- list of id's for header cells --  scope       %Scope;        #IMPLIED  -- scope covered by header cells --  rowspan     NUMBER         1         -- number of rows spanned by cell --  colspan     NUMBER         1         -- number of cols spanned by cell --  %cellhalign;                         -- horizontal alignment in cells --  %cellvalign;                         -- vertical alignment in cells --  ><!--================ Document Head =======================================--><!-- %head.misc; defined earlier on as "SCRIPT|STYLE|META|LINK|OBJECT" --><!ENTITY % head.content "TITLE & BASE?"><!ELEMENT HEAD O O (%head.content;) +(%head.misc;) -- document head --><!ATTLIST HEAD  %i18n;                               -- lang, dir --  profile     %URI;          #IMPLIED  -- named dictionary of meta info --  ><!-- The TITLE element is not considered part of the flow of text.       It should be displayed, for example as the page header or       window title. Exactly one title is required per document.    --><!ELEMENT TITLE - - (#PCDATA) -(%head.misc;) -- document title --><!ATTLIST TITLE %i18n><!ELEMENT BASE - O EMPTY               -- document base URI --><!ATTLIST BASE  href        %URI;          #REQUIRED -- URI that acts as base URI --  ><!ELEMENT META - O EMPTY               -- generic metainformation --><!ATTLIST META  %i18n;                               -- lang, dir, for use with content --  http-equiv  NAME           #IMPLIED  -- HTTP response header name  --  name        NAME           #IMPLIED  -- metainformation name --  content     CDATA          #REQUIRED -- associated information --  scheme      CDATA          #IMPLIED  -- select form of content --  ><!ELEMENT STYLE - - %StyleSheet        -- style info --><!ATTLIST STYLE  %i18n;                               -- lang, dir, for use with title --  type        %ContentType;  #REQUIRED -- content type of style language --  media       %MediaDesc;    #IMPLIED  -- designed for use with these media --  title       %Text;         #IMPLIED  -- advisory title --  ><!ELEMENT SCRIPT - - %Script;          -- script statements --><!ATTLIST SCRIPT  charset     %Charset;      #IMPLIED  -- char encoding of linked resource --  type        %ContentType;  #REQUIRED -- content type of script language --  src         %URI;          #IMPLIED  -- URI for an external script --  defer       (defer)        #IMPLIED  -- UA may defer execution of script --  event       CDATA          #IMPLIED  -- reserved for possible future use --  for         %URI;          #IMPLIED  -- reserved for possible future use --  ><!ELEMENT NOSCRIPT - - (%block;)+  -- alternate content container for non script-based rendering --><!ATTLIST NOSCRIPT  %attrs;                              -- %coreattrs, %i18n, %events --  ><!--================ Document Structure ==================================--><!ENTITY % html.content "HEAD, BODY"><!ELEMENT HTML O O (%html.content;)    -- document root element --><!ATTLIST HTML  %i18n;                               -- lang, dir --  >
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??? HTML?4.01?Transitional?DTD 文件内容:

<!--    This is the HTML 4.01 Transitional DTD, which includes    presentation attributes and elements that W3C expects to phase out    as support for style sheets matures. Authors should use the Strict    DTD when possible, but may use the Transitional DTD when support    for presentation attribute and elements is required.    HTML 4 includes mechanisms for style sheets, scripting,    embedding objects, improved support for right to left and mixed    direction text, and enhancements to forms for improved    accessibility for people with disabilities.          Draft: $Date: 1999/12/24 23:37:48 $          Authors:              Dave Raggett <dsr@w3.org>              Arnaud Le Hors <lehors@w3.org>              Ian Jacobs <ij@w3.org>    Further information about HTML 4.01 is available at:        http://www.w3.org/TR/1999/REC-html401-19991224    The HTML 4.01 specification includes additional    syntactic constraints that cannot be expressed within    the DTDs.--><!ENTITY % HTML.Version "-//W3C//DTD HTML 4.01 Transitional//EN"  -- Typical usage:    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"            "http://www.w3.org/TR/html4/loose.dtd">    <html>    <head>    ...    </head>    <body>    ...    </body>    </html>    The URI used as a system identifier with the public identifier allows    the user agent to download the DTD and entity sets as needed.    The FPI for the Strict HTML 4.01 DTD is:        "-//W3C//DTD HTML 4.01//EN"    This version of the strict DTD is:        http://www.w3.org/TR/1999/REC-html401-19991224/strict.dtd    Authors should use the Strict DTD unless they need the    presentation control for user agents that don't (adequately)    support style sheets.    If you are writing a document that includes frames, use     the following FPI:        "-//W3C//DTD HTML 4.01 Frameset//EN"    This version of the frameset DTD is:        http://www.w3.org/TR/1999/REC-html401-19991224/frameset.dtd    Use the following (relative) URIs to refer to     the DTDs and entity definitions of this specification:    "strict.dtd"    "loose.dtd"    "frameset.dtd"    "HTMLlat1.ent"    "HTMLsymbol.ent"    "HTMLspecial.ent"--><!--================== Imported Names ====================================--><!-- Feature Switch for frameset documents --><!ENTITY % HTML.Frameset "IGNORE"><!ENTITY % ContentType "CDATA"    -- media type, as per [RFC2045]    --><!ENTITY % ContentTypes "CDATA"    -- comma-separated list of media types, as per [RFC2045]    --><!ENTITY % Charset "CDATA"    -- a character encoding, as per [RFC2045]    --><!ENTITY % Charsets "CDATA"    -- a space-separated list of character encodings, as per [RFC2045]    --><!ENTITY % LanguageCode "NAME"    -- a language code, as per [RFC1766]    --><!ENTITY % Character "CDATA"    -- a single character from [ISO10646]     --><!ENTITY % LinkTypes "CDATA"    -- space-separated list of link types    --><!ENTITY % MediaDesc "CDATA"    -- single or comma-separated list of media descriptors    --><!ENTITY % URI "CDATA"    -- a Uniform Resource Identifier,       see [URI]    --><!ENTITY % Datetime "CDATA" -- date and time information. ISO date format --><!ENTITY % Script "CDATA" -- script expression --><!ENTITY % StyleSheet "CDATA" -- style sheet data --><!ENTITY % FrameTarget "CDATA" -- render in this frame --><!ENTITY % Text "CDATA"><!-- Parameter Entities --><!ENTITY % head.misc "SCRIPT|STYLE|META|LINK|OBJECT" -- repeatable head elements --><!ENTITY % heading "H1|H2|H3|H4|H5|H6"><!ENTITY % list "UL | OL |  DIR | MENU"><!ENTITY % preformatted "PRE"><!ENTITY % Color "CDATA" -- a color using sRGB: #RRGGBB as Hex values --><!-- There are also 16 widely known color names with their sRGB values:    Black  = #000000    Green  = #008000    Silver = #C0C0C0    Lime   = #00FF00    Gray   = #808080    Olive  = #808000    White  = #FFFFFF    Yellow = #FFFF00    Maroon = #800000    Navy   = #000080    Red    = #FF0000    Blue   = #0000FF    Purple = #800080    Teal   = #008080    Fuchsia= #FF00FF    Aqua   = #00FFFF --><!ENTITY % bodycolors "  bgcolor     %Color;        #IMPLIED  -- document background color --  text        %Color;        #IMPLIED  -- document text color --  link        %Color;        #IMPLIED  -- color of links --  vlink       %Color;        #IMPLIED  -- color of visited links --  alink       %Color;        #IMPLIED  -- color of selected links --  "><!--================ Character mnemonic entities =========================--><!ENTITY % HTMLlat1 PUBLIC   "-//W3C//ENTITIES Latin1//EN//HTML"   "HTMLlat1.ent">%HTMLlat1;<!ENTITY % HTMLsymbol PUBLIC   "-//W3C//ENTITIES Symbols//EN//HTML"   "HTMLsymbol.ent">%HTMLsymbol;<!ENTITY % HTMLspecial PUBLIC   "-//W3C//ENTITIES Special//EN//HTML"   "HTMLspecial.ent">%HTMLspecial;<!--=================== Generic Attributes ===============================--><!ENTITY % coreattrs "id          ID             #IMPLIED  -- document-wide unique id --  class       CDATA          #IMPLIED  -- space-separated list of classes --  style       %StyleSheet;   #IMPLIED  -- associated style info --  title       %Text;         #IMPLIED  -- advisory title --"  ><!ENTITY % i18n "lang        %LanguageCode; #IMPLIED  -- language code --  dir         (ltr|rtl)      #IMPLIED  -- direction for weak/neutral text --"  ><!ENTITY % events "onclick     %Script;       #IMPLIED  -- a pointer button was clicked --  ondblclick  %Script;       #IMPLIED  -- a pointer button was double clicked--  onmousedown %Script;       #IMPLIED  -- a pointer button was pressed down --  onmouseup   %Script;       #IMPLIED  -- a pointer button was released --  onmouseover %Script;       #IMPLIED  -- a pointer was moved onto --  onmousemove %Script;       #IMPLIED  -- a pointer was moved within --  onmouseout  %Script;       #IMPLIED  -- a pointer was moved away --  onkeypress  %Script;       #IMPLIED  -- a key was pressed and released --  onkeydown   %Script;       #IMPLIED  -- a key was pressed down --  onkeyup     %Script;       #IMPLIED  -- a key was released --"  ><!-- Reserved Feature Switch --><!ENTITY % HTML.Reserved "IGNORE"><!-- The following attributes are reserved for possible future use --><![ %HTML.Reserved; [<!ENTITY % reserved "datasrc     %URI;          #IMPLIED  -- a single or tabular Data Source --  datafld     CDATA          #IMPLIED  -- the property or column name --  dataformatas (plaintext|html) plaintext -- text or html --"  >]]><!ENTITY % reserved ""><!ENTITY % attrs "%coreattrs; %i18n; %events;"><!ENTITY % align "align (left|center|right|justify)  #IMPLIED"                   -- default is left for ltr paragraphs, right for rtl --  ><!--=================== Text Markup ======================================--><!ENTITY % fontstyle "TT | I | B | U | S | STRIKE | BIG | SMALL"><!ENTITY % phrase "EM | STRONG | DFN | CODE |                   SAMP | KBD | VAR | CITE | ABBR | ACRONYM" ><!ENTITY % special   "A | IMG | APPLET | OBJECT | FONT | BASEFONT | BR | SCRIPT |    MAP | Q | SUB | SUP | SPAN | BDO | IFRAME"><!ENTITY % formctrl "INPUT | SELECT | TEXTAREA | LABEL | BUTTON"><!-- %inline; covers inline or "text-level" elements --><!ENTITY % inline "#PCDATA | %fontstyle; | %phrase; | %special; | %formctrl;"><!ELEMENT (%fontstyle;|%phrase;) - - (%inline;)*><!ATTLIST (%fontstyle;|%phrase;)  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT (SUB|SUP) - - (%inline;)*    -- subscript, superscript --><!ATTLIST (SUB|SUP)  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT SPAN - - (%inline;)*         -- generic language/style container --><!ATTLIST SPAN  %attrs;                              -- %coreattrs, %i18n, %events --  %reserved;       -- reserved for possible future use --  ><!ELEMENT BDO - - (%inline;)*          -- I18N BiDi over-ride --><!ATTLIST BDO  %coreattrs;                          -- id, class, style, title --  lang        %LanguageCode; #IMPLIED  -- language code --  dir         (ltr|rtl)      #REQUIRED -- directionality --  ><!ELEMENT BASEFONT - O EMPTY           -- base font size --><!ATTLIST BASEFONT  id          ID             #IMPLIED  -- document-wide unique id --  size        CDATA          #REQUIRED -- base font size for FONT elements --  color       %Color;        #IMPLIED  -- text color --  face        CDATA          #IMPLIED  -- comma-separated list of font names --  ><!ELEMENT FONT - - (%inline;)*         -- local change to font --><!ATTLIST FONT  %coreattrs;                          -- id, class, style, title --  %i18n;               -- lang, dir --  size        CDATA          #IMPLIED  -- [+|-]nn e.g. size="+1", size="4" --  color       %Color;        #IMPLIED  -- text color --  face        CDATA          #IMPLIED  -- comma-separated list of font names --  ><!ELEMENT BR - O EMPTY                 -- forced line break --><!ATTLIST BR  %coreattrs;                          -- id, class, style, title --  clear       (left|all|right|none) none -- control of text flow --  ><!--================== HTML content models ===============================--><!--    HTML has two basic content models:        %inline;     character level elements and text strings        %block;      block-like elements e.g. paragraphs and lists--><!ENTITY % block     "P | %heading; | %list; | %preformatted; | DL | DIV | CENTER |      NOSCRIPT | NOFRAMES | BLOCKQUOTE | FORM | ISINDEX | HR |      TABLE | FIELDSET | ADDRESS"><!ENTITY % flow "%block; | %inline;"><!--=================== Document Body ====================================--><!ELEMENT BODY O O (%flow;)* +(INS|DEL) -- document body --><!ATTLIST BODY  %attrs;                              -- %coreattrs, %i18n, %events --  onload          %Script;   #IMPLIED  -- the document has been loaded --  onunload        %Script;   #IMPLIED  -- the document has been removed --  background      %URI;      #IMPLIED  -- texture tile for document                                          background --  %bodycolors;                         -- bgcolor, text, link, vlink, alink --  ><!ELEMENT ADDRESS - - ((%inline;)|P)*  -- information on author --><!ATTLIST ADDRESS  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT DIV - - (%flow;)*            -- generic language/style container --><!ATTLIST DIV  %attrs;                              -- %coreattrs, %i18n, %events --  %align;                              -- align, text alignment --  %reserved;                           -- reserved for possible future use --  ><!ELEMENT CENTER - - (%flow;)*         -- shorthand for DIV align=center --><!ATTLIST CENTER  %attrs;                              -- %coreattrs, %i18n, %events --  ><!--================== The Anchor Element ================================--><!ENTITY % Shape "(rect|circle|poly|default)"><!ENTITY % Coords "CDATA" -- comma-separated list of lengths --><!ELEMENT A - - (%inline;)* -(A)       -- anchor --><!ATTLIST A  %attrs;                              -- %coreattrs, %i18n, %events --  charset     %Charset;      #IMPLIED  -- char encoding of linked resource --  type        %ContentType;  #IMPLIED  -- advisory content type --  name        CDATA          #IMPLIED  -- named link end --  href        %URI;          #IMPLIED  -- URI for linked resource --  hreflang    %LanguageCode; #IMPLIED  -- language code --  target      %FrameTarget;  #IMPLIED  -- render in this frame --  rel         %LinkTypes;    #IMPLIED  -- forward link types --  rev         %LinkTypes;    #IMPLIED  -- reverse link types --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  shape       %Shape;        rect      -- for use with client-side image maps --  coords      %Coords;       #IMPLIED  -- for use with client-side image maps --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  ><!--================== Client-side image maps ============================--><!-- These can be placed in the same document or grouped in a     separate document although this isn't yet widely supported --><!ELEMENT MAP - - ((%block;) | AREA)+ -- client-side image map --><!ATTLIST MAP  %attrs;                              -- %coreattrs, %i18n, %events --  name        CDATA          #REQUIRED -- for reference by usemap --  ><!ELEMENT AREA - O EMPTY               -- client-side image map area --><!ATTLIST AREA  %attrs;                              -- %coreattrs, %i18n, %events --  shape       %Shape;        rect      -- controls interpretation of coords --  coords      %Coords;       #IMPLIED  -- comma-separated list of lengths --  href        %URI;          #IMPLIED  -- URI for linked resource --  target      %FrameTarget;  #IMPLIED  -- render in this frame --  nohref      (nohref)       #IMPLIED  -- this region has no action --  alt         %Text;         #REQUIRED -- short description --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  ><!--================== The LINK Element ==================================--><!--  Relationship values can be used in principle:   a) for document specific toolbars/menus when used      with the LINK element in document head e.g.        start, contents, previous, next, index, end, help   b) to link to a separate style sheet (rel=stylesheet)   c) to make a link to a script (rel=script)   d) by stylesheets to control how collections of      html nodes are rendered into printed documents   e) to make a link to a printable version of this document      e.g. a postscript or pdf version (rel=alternate media=print)--><!ELEMENT LINK - O EMPTY               -- a media-independent link --><!ATTLIST LINK  %attrs;                              -- %coreattrs, %i18n, %events --  charset     %Charset;      #IMPLIED  -- char encoding of linked resource --  href        %URI;          #IMPLIED  -- URI for linked resource --  hreflang    %LanguageCode; #IMPLIED  -- language code --  type        %ContentType;  #IMPLIED  -- advisory content type --  rel         %LinkTypes;    #IMPLIED  -- forward link types --  rev         %LinkTypes;    #IMPLIED  -- reverse link types --  media       %MediaDesc;    #IMPLIED  -- for rendering on these media --  target      %FrameTarget;  #IMPLIED  -- render in this frame --  ><!--=================== Images ===========================================--><!-- Length defined in strict DTD for cellpadding/cellspacing --><!ENTITY % Length "CDATA" -- nn for pixels or nn% for percentage length --><!ENTITY % MultiLength "CDATA" -- pixel, percentage, or relative --><![ %HTML.Frameset; [<!ENTITY % MultiLengths "CDATA" -- comma-separated list of MultiLength -->]]><!ENTITY % Pixels "CDATA" -- integer representing length in pixels --><!ENTITY % IAlign "(top|middle|bottom|left|right)" -- center? --><!-- To avoid problems with text-only UAs as well as    to make image content understandable and navigable    to users of non-visual UAs, you need to provide   a description with ALT, and avoid server-side image maps --><!ELEMENT IMG - O EMPTY                -- Embedded image --><!ATTLIST IMG  %attrs;                              -- %coreattrs, %i18n, %events --  src         %URI;          #REQUIRED -- URI of image to embed --  alt         %Text;         #REQUIRED -- short description --  longdesc    %URI;          #IMPLIED  -- link to long description                                          (complements alt) --  name        CDATA          #IMPLIED  -- name of image for scripting --  height      %Length;       #IMPLIED  -- override height --  width       %Length;       #IMPLIED  -- override width --  usemap      %URI;          #IMPLIED  -- use client-side image map --  ismap       (ismap)        #IMPLIED  -- use server-side image map --  align       %IAlign;       #IMPLIED  -- vertical or horizontal alignment --  border      %Pixels;       #IMPLIED  -- link border width --  hspace      %Pixels;       #IMPLIED  -- horizontal gutter --  vspace      %Pixels;       #IMPLIED  -- vertical gutter --  ><!-- USEMAP points to a MAP element which may be in this document  or an external document, although the latter is not widely supported --><!--==================== OBJECT ======================================--><!--  OBJECT is used to embed objects as part of HTML pages   PARAM elements should precede other content. SGML mixed content  model technicality precludes specifying this formally ...--><!ELEMENT OBJECT - - (PARAM | %flow;)* -- generic embedded object --><!ATTLIST OBJECT  %attrs;                              -- %coreattrs, %i18n, %events --  declare     (declare)      #IMPLIED  -- declare but don't instantiate flag --  classid     %URI;          #IMPLIED  -- identifies an implementation --  codebase    %URI;          #IMPLIED  -- base URI for classid, data, archive--  data        %URI;          #IMPLIED  -- reference to object's data --  type        %ContentType;  #IMPLIED  -- content type for data --  codetype    %ContentType;  #IMPLIED  -- content type for code --  archive     CDATA          #IMPLIED  -- space-separated list of URIs --  standby     %Text;         #IMPLIED  -- message to show while loading --  height      %Length;       #IMPLIED  -- override height --  width       %Length;       #IMPLIED  -- override width --  usemap      %URI;          #IMPLIED  -- use client-side image map --  name        CDATA          #IMPLIED  -- submit as part of form --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  align       %IAlign;       #IMPLIED  -- vertical or horizontal alignment --  border      %Pixels;       #IMPLIED  -- link border width --  hspace      %Pixels;       #IMPLIED  -- horizontal gutter --  vspace      %Pixels;       #IMPLIED  -- vertical gutter --  %reserved;                           -- reserved for possible future use --  ><!ELEMENT PARAM - O EMPTY              -- named property value --><!ATTLIST PARAM  id          ID             #IMPLIED  -- document-wide unique id --  name        CDATA          #REQUIRED -- property name --  value       CDATA          #IMPLIED  -- property value --  valuetype   (DATA|REF|OBJECT) DATA   -- How to interpret value --  type        %ContentType;  #IMPLIED  -- content type for value                                          when valuetype=ref --  ><!--=================== Java APPLET ==================================--><!--  One of code or object attributes must be present.  Place PARAM elements before other content.--><!ELEMENT APPLET - - (PARAM | %flow;)* -- Java applet --><!ATTLIST APPLET  %coreattrs;                          -- id, class, style, title --  codebase    %URI;          #IMPLIED  -- optional base URI for applet --  archive     CDATA          #IMPLIED  -- comma-separated archive list --  code        CDATA          #IMPLIED  -- applet class file --  object      CDATA          #IMPLIED  -- serialized applet file --  alt         %Text;         #IMPLIED  -- short description --  name        CDATA          #IMPLIED  -- allows applets to find each other --  width       %Length;       #REQUIRED -- initial width --  height      %Length;       #REQUIRED -- initial height --  align       %IAlign;       #IMPLIED  -- vertical or horizontal alignment --  hspace      %Pixels;       #IMPLIED  -- horizontal gutter --  vspace      %Pixels;       #IMPLIED  -- vertical gutter --  ><!--=================== Horizontal Rule ==================================--><!ELEMENT HR - O EMPTY -- horizontal rule --><!ATTLIST HR  %attrs;                              -- %coreattrs, %i18n, %events --  align       (left|center|right) #IMPLIED  noshade     (noshade)      #IMPLIED  size        %Pixels;       #IMPLIED  width       %Length;       #IMPLIED  ><!--=================== Paragraphs =======================================--><!ELEMENT P - O (%inline;)*            -- paragraph --><!ATTLIST P  %attrs;                              -- %coreattrs, %i18n, %events --  %align;                              -- align, text alignment --  ><!--=================== Headings =========================================--><!--  There are six levels of headings from H1 (the most important)  to H6 (the least important).--><!ELEMENT (%heading;)  - - (%inline;)* -- heading --><!ATTLIST (%heading;)  %attrs;                              -- %coreattrs, %i18n, %events --  %align;                              -- align, text alignment --  ><!--=================== Preformatted Text ================================--><!-- excludes markup for images and changes in font size --><!ENTITY % pre.exclusion "IMG|OBJECT|APPLET|BIG|SMALL|SUB|SUP|FONT|BASEFONT"><!ELEMENT PRE - - (%inline;)* -(%pre.exclusion;) -- preformatted text --><!ATTLIST PRE  %attrs;                              -- %coreattrs, %i18n, %events --  width       NUMBER         #IMPLIED  ><!--===================== Inline Quotes ==================================--><!ELEMENT Q - - (%inline;)*            -- short inline quotation --><!ATTLIST Q  %attrs;                              -- %coreattrs, %i18n, %events --  cite        %URI;          #IMPLIED  -- URI for source document or msg --  ><!--=================== Block-like Quotes ================================--><!ELEMENT BLOCKQUOTE - - (%flow;)*     -- long quotation --><!ATTLIST BLOCKQUOTE  %attrs;                              -- %coreattrs, %i18n, %events --  cite        %URI;          #IMPLIED  -- URI for source document or msg --  ><!--=================== Inserted/Deleted Text ============================--><!-- INS/DEL are handled by inclusion on BODY --><!ELEMENT (INS|DEL) - - (%flow;)*      -- inserted text, deleted text --><!ATTLIST (INS|DEL)  %attrs;                              -- %coreattrs, %i18n, %events --  cite        %URI;          #IMPLIED  -- info on reason for change --  datetime    %Datetime;     #IMPLIED  -- date and time of change --  ><!--=================== Lists ============================================--><!-- definition lists - DT for term, DD for its definition --><!ELEMENT DL - - (DT|DD)+              -- definition list --><!ATTLIST DL  %attrs;                              -- %coreattrs, %i18n, %events --  compact     (compact)      #IMPLIED  -- reduced interitem spacing --  ><!ELEMENT DT - O (%inline;)*           -- definition term --><!ELEMENT DD - O (%flow;)*             -- definition description --><!ATTLIST (DT|DD)  %attrs;                              -- %coreattrs, %i18n, %events --  ><!-- Ordered lists (OL) Numbering style    1   arablic numbers     1, 2, 3, ...    a   lower alpha         a, b, c, ...    A   upper alpha         A, B, C, ...    i   lower roman         i, ii, iii, ...    I   upper roman         I, II, III, ...    The style is applied to the sequence number which by default    is reset to 1 for the first list item in an ordered list.    This can't be expressed directly in SGML due to case folding.--><!ENTITY % OLStyle "CDATA"      -- constrained to: "(1|a|A|i|I)" --><!ELEMENT OL - - (LI)+                 -- ordered list --><!ATTLIST OL  %attrs;                              -- %coreattrs, %i18n, %events --  type        %OLStyle;      #IMPLIED  -- numbering style --  compact     (compact)      #IMPLIED  -- reduced interitem spacing --  start       NUMBER         #IMPLIED  -- starting sequence number --  ><!-- Unordered Lists (UL) bullet styles --><!ENTITY % ULStyle "(disc|square|circle)"><!ELEMENT UL - - (LI)+                 -- unordered list --><!ATTLIST UL  %attrs;                              -- %coreattrs, %i18n, %events --  type        %ULStyle;      #IMPLIED  -- bullet style --  compact     (compact)      #IMPLIED  -- reduced interitem spacing --  ><!ELEMENT (DIR|MENU) - - (LI)+ -(%block;) -- directory list, menu list --><!ATTLIST DIR  %attrs;                              -- %coreattrs, %i18n, %events --  compact     (compact)      #IMPLIED -- reduced interitem spacing --  ><!ATTLIST MENU  %attrs;                              -- %coreattrs, %i18n, %events --  compact     (compact)      #IMPLIED -- reduced interitem spacing --  ><!ENTITY % LIStyle "CDATA" -- constrained to: "(%ULStyle;|%OLStyle;)" --><!ELEMENT LI - O (%flow;)*             -- list item --><!ATTLIST LI  %attrs;                              -- %coreattrs, %i18n, %events --  type        %LIStyle;      #IMPLIED  -- list item style --  value       NUMBER         #IMPLIED  -- reset sequence number --  ><!--================ Forms ===============================================--><!ELEMENT FORM - - (%flow;)* -(FORM)   -- interactive form --><!ATTLIST FORM  %attrs;                              -- %coreattrs, %i18n, %events --  action      %URI;          #REQUIRED -- server-side form handler --  method      (GET|POST)     GET       -- HTTP method used to submit the form--  enctype     %ContentType;  "application/x-www-form-urlencoded"  accept      %ContentTypes; #IMPLIED  -- list of MIME types for file upload --  name        CDATA          #IMPLIED  -- name of form for scripting --  onsubmit    %Script;       #IMPLIED  -- the form was submitted --  onreset     %Script;       #IMPLIED  -- the form was reset --  target      %FrameTarget;  #IMPLIED  -- render in this frame --  accept-charset %Charsets;  #IMPLIED  -- list of supported charsets --  ><!-- Each label must not contain more than ONE field --><!ELEMENT LABEL - - (%inline;)* -(LABEL) -- form field label text --><!ATTLIST LABEL  %attrs;                              -- %coreattrs, %i18n, %events --  for         IDREF          #IMPLIED  -- matches field ID value --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  ><!ENTITY % InputType  "(TEXT | PASSWORD | CHECKBOX |    RADIO | SUBMIT | RESET |    FILE | HIDDEN | IMAGE | BUTTON)"   ><!-- attribute name required for all but submit and reset --><!ELEMENT INPUT - O EMPTY              -- form control --><!ATTLIST INPUT  %attrs;                              -- %coreattrs, %i18n, %events --  type        %InputType;    TEXT      -- what kind of widget is needed --  name        CDATA          #IMPLIED  -- submit as part of form --  value       CDATA          #IMPLIED  -- Specify for radio buttons and checkboxes --  checked     (checked)      #IMPLIED  -- for radio buttons and check boxes --  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  readonly    (readonly)     #IMPLIED  -- for text and passwd --  size        CDATA          #IMPLIED  -- specific to each type of field --  maxlength   NUMBER         #IMPLIED  -- max chars for text fields --  src         %URI;          #IMPLIED  -- for fields with images --  alt         CDATA          #IMPLIED  -- short description --  usemap      %URI;          #IMPLIED  -- use client-side image map --  ismap       (ismap)        #IMPLIED  -- use server-side image map --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  onselect    %Script;       #IMPLIED  -- some text was selected --  onchange    %Script;       #IMPLIED  -- the element value was changed --  accept      %ContentTypes; #IMPLIED  -- list of MIME types for file upload --  align       %IAlign;       #IMPLIED  -- vertical or horizontal alignment --  %reserved;                           -- reserved for possible future use --  ><!ELEMENT SELECT - - (OPTGROUP|OPTION)+ -- option selector --><!ATTLIST SELECT  %attrs;                              -- %coreattrs, %i18n, %events --  name        CDATA          #IMPLIED  -- field name --  size        NUMBER         #IMPLIED  -- rows visible --  multiple    (multiple)     #IMPLIED  -- default is single selection --  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  onchange    %Script;       #IMPLIED  -- the element value was changed --  %reserved;                           -- reserved for possible future use --  ><!ELEMENT OPTGROUP - - (OPTION)+ -- option group --><!ATTLIST OPTGROUP  %attrs;                              -- %coreattrs, %i18n, %events --  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  label       %Text;         #REQUIRED -- for use in hierarchical menus --  ><!ELEMENT OPTION - O (#PCDATA)         -- selectable choice --><!ATTLIST OPTION  %attrs;                              -- %coreattrs, %i18n, %events --  selected    (selected)     #IMPLIED  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  label       %Text;         #IMPLIED  -- for use in hierarchical menus --  value       CDATA          #IMPLIED  -- defaults to element content --  ><!ELEMENT TEXTAREA - - (#PCDATA)       -- multi-line text field --><!ATTLIST TEXTAREA  %attrs;                              -- %coreattrs, %i18n, %events --  name        CDATA          #IMPLIED  rows        NUMBER         #REQUIRED  cols        NUMBER         #REQUIRED  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  readonly    (readonly)     #IMPLIED  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  onselect    %Script;       #IMPLIED  -- some text was selected --  onchange    %Script;       #IMPLIED  -- the element value was changed --  %reserved;                           -- reserved for possible future use --  ><!--  #PCDATA is to solve the mixed content problem,  per specification only whitespace is allowed there! --><!ELEMENT FIELDSET - - (#PCDATA,LEGEND,(%flow;)*) -- form control group --><!ATTLIST FIELDSET  %attrs;                              -- %coreattrs, %i18n, %events --  ><!ELEMENT LEGEND - - (%inline;)*       -- fieldset legend --><!ENTITY % LAlign "(top|bottom|left|right)"><!ATTLIST LEGEND  %attrs;                              -- %coreattrs, %i18n, %events --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  align       %LAlign;       #IMPLIED  -- relative to fieldset --  ><!ELEMENT BUTTON - -     (%flow;)* -(A|%formctrl;|FORM|ISINDEX|FIELDSET|IFRAME)     -- push button --><!ATTLIST BUTTON  %attrs;                              -- %coreattrs, %i18n, %events --  name        CDATA          #IMPLIED  value       CDATA          #IMPLIED  -- sent to server when submitted --  type        (button|submit|reset) submit -- for use as form button --  disabled    (disabled)     #IMPLIED  -- unavailable in this context --  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --  accesskey   %Character;    #IMPLIED  -- accessibility key character --  onfocus     %Script;       #IMPLIED  -- the element got the focus --  onblur      %Script;       #IMPLIED  -- the element lost the focus --  %reserved;                           -- reserved for possible future use --  ><!--======================= Tables =======================================--><!-- IETF HTML table standard, see [RFC1942] --><!-- The BORDER attribute sets the thickness of the frame around the table. The default units are screen pixels. The FRAME attribute specifies which parts of the frame around the table should be rendered. The values are not the same as CALS to avoid a name clash with the VALIGN attribute. The value "border" is included for backwards compatibility with <TABLE BORDER> which yields frame=border and border=implied For <TABLE BORDER=1> you get border=1 and frame=implied. In this case, it is appropriate to treat this as frame=border for backwards compatibility with deployed browsers.--><!ENTITY % TFrame "(void|above|below|hsides|lhs|rhs|vsides|box|border)"><!-- The RULES attribute defines which rules to draw between cells: If RULES is absent then assume:     "none" if BORDER is absent or BORDER=0 otherwise "all"--><!ENTITY % TRules "(none | groups | rows | cols | all)">  <!-- horizontal placement of table relative to document --><!ENTITY % TAlign "(left|center|right)"><!-- horizontal alignment attributes for cell contents --><!ENTITY % cellhalign  "align      (left|center|right|justify|char) #IMPLIED   char       %Character;    #IMPLIED  -- alignment char, e.g. char=':' --   charoff    %Length;       #IMPLIED  -- offset for alignment char --"  ><!-- vertical alignment attributes for cell contents --><!ENTITY % cellvalign  "valign     (top|middle|bottom|baseline) #IMPLIED"  ><!ELEMENT TABLE - -     (CAPTION?, (COL*|COLGROUP*), THEAD?, TFOOT?, TBODY+)><!ELEMENT CAPTION  - - (%inline;)*     -- table caption --><!ELEMENT THEAD    - O (TR)+           -- table header --><!ELEMENT TFOOT    - O (TR)+           -- table footer --><!ELEMENT TBODY    O O (TR)+           -- table body --><!ELEMENT COLGROUP - O (COL)*          -- table column group --><!ELEMENT COL      - O EMPTY           -- table column --><!ELEMENT TR       - O (TH|TD)+        -- table row --><!ELEMENT (TH|TD)  - O (%flow;)*       -- table header cell, table data cell--><!ATTLIST TABLE                        -- table element --  %attrs;                              -- %coreattrs, %i18n, %events --  summary     %Text;         #IMPLIED  -- purpose/structure for speech output--  width       %Length;       #IMPLIED  -- table width --  border      %Pixels;       #IMPLIED  -- controls frame width around table --  frame       %TFrame;       #IMPLIED  -- which parts of frame to render --  rules       %TRules;       #IMPLIED  -- rulings between rows and cols --  cellspacing %Length;       #IMPLIED  -- spacing between cells --  cellpadding %Length;       #IMPLIED  -- spacing within cells --  align       %TAlign;       #IMPLIED  -- table position relative to window --  bgcolor     %Color;        #IMPLIED  -- background color for cells --  %reserved;                           -- reserved for possible future use --  datapagesize CDATA         #IMPLIED  -- reserved for possible future use --  ><!ENTITY % CAlign "(top|bottom|left|right)"><!ATTLIST CAPTION  %attrs;                              -- %coreattrs, %i18n, %events --  align       %CAlign;       #IMPLIED  -- relative to table --  ><!--COLGROUP groups a set of COL elements. It allows you to groupseveral semantically related columns together.--><!ATTLIST COLGROUP  %attrs;                              -- %coreattrs, %i18n, %events --  span        NUMBER         1         -- default number of columns in group --  width       %MultiLength;  #IMPLIED  -- default width for enclosed COLs --  %cellhalign;                         -- horizontal alignment in cells --  %cellvalign;                         -- vertical alignment in cells --  ><!-- COL elements define the alignment properties for cells in one or more columns. The WIDTH attribute specifies the width of the columns, e.g.     width=64        width in screen pixels     width=0.5*      relative width of 0.5 The SPAN attribute causes the attributes of one COL element to apply to more than one column.--><!ATTLIST COL                          -- column groups and properties --  %attrs;                              -- %coreattrs, %i18n, %events --  span        NUMBER         1         -- COL attributes affect N columns --  width       %MultiLength;  #IMPLIED  -- column width specification --  %cellhalign;                         -- horizontal alignment in cells --  %cellvalign;                         -- vertical alignment in cells --  ><!--    Use THEAD to duplicate headers when breaking table    across page boundaries, or for static headers when    TBODY sections are rendered in scrolling panel.    Use TFOOT to duplicate footers when breaking table    across page boundaries, or for static footers when    TBODY sections are rendered in scrolling panel.    Use multiple TBODY sections when rules are needed    between groups of table rows.--><!ATTLIST (THEAD|TBODY|TFOOT)          -- table section --  %attrs;                              -- %coreattrs, %i18n, %events --  %cellhalign;                         -- horizontal alignment in cells --  %cellvalign;                         -- vertical alignment in cells --  ><!ATTLIST TR                           -- table row --  %attrs;                              -- %coreattrs, %i18n, %events --  %cellhalign;                         -- horizontal alignment in cells --  %cellvalign;                         -- vertical alignment in cells --  bgcolor     %Color;        #IMPLIED  -- background color for row --  ><!-- Scope is simpler than headers attribute for common tables --><!ENTITY % Scope "(row|col|rowgroup|colgroup)"><!-- TH is for headers, TD for data, but for cells acting as both use TD --><!ATTLIST (TH|TD)                      -- header or data cell --  %attrs;                              -- %coreattrs, %i18n, %events --  abbr        %Text;         #IMPLIED  -- abbreviation for header cell --  axis        CDATA          #IMPLIED  -- comma-separated list of related headers--  headers     IDREFS         #IMPLIED  -- list of id's for header cells --  scope       %Scope;        #IMPLIED  -- scope covered by header cells --  rowspan     NUMBER         1         -- number of rows spanned by cell --  colspan     NUMBER         1         -- number of cols spanned by cell --  %cellhalign;                         -- horizontal alignment in cells --  %cellvalign;                         -- vertical alignment in cells --  nowrap      (nowrap)       #IMPLIED  -- suppress word wrap --  bgcolor     %Color;        #IMPLIED  -- cell background color --  width       %Length;       #IMPLIED  -- width for cell --  height      %Length;       #IMPLIED  -- height for cell --  ><!--================== Document Frames ===================================--><!--  The content model for HTML documents depends on whether the HEAD is  followed by a FRAMESET or BODY element. The widespread omission of  the BODY start tag makes it impractical to define the content model  without the use of a marked section.--><![ %HTML.Frameset; [<!ELEMENT FRAMESET - - ((FRAMESET|FRAME)+ & NOFRAMES?) -- window subdivision--><!ATTLIST FRAMESET  %coreattrs;                          -- id, class, style, title --  rows        %MultiLengths; #IMPLIED  -- list of lengths,                                          default: 100% (1 row) --  cols        %MultiLengths; #IMPLIED  -- list of lengths,                                          default: 100% (1 col) --  onload      %Script;       #IMPLIED  -- all the frames have been loaded  --   onunload    %Script;       #IMPLIED  -- all the frames have been removed --   >]]><![ %HTML.Frameset; [<!-- reserved frame names start with "_" otherwise starts with letter --><!ELEMENT FRAME - O EMPTY              -- subwindow --><!ATTLIST FRAME  %coreattrs;                          -- id, class, style, title --  longdesc    %URI;          #IMPLIED  -- link to long description                                          (complements title) --  name        CDATA          #IMPLIED  -- name of frame for targetting --  src         %URI;          #IMPLIED  -- source of frame content --  frameborder (1|0)          1         -- request frame borders? --  marginwidth %Pixels;       #IMPLIED  -- margin widths in pixels --  marginheight %Pixels;      #IMPLIED  -- margin height in pixels --  noresize    (noresize)     #IMPLIED  -- allow users to resize frames? --  scrolling   (yes|no|auto)  auto      -- scrollbar or none --  >]]><!ELEMENT IFRAME - - (%flow;)*         -- inline subwindow --><!ATTLIST IFRAME  %coreattrs;                          -- id, class, style, title --  longdesc    %URI;          #IMPLIED  -- link to long description                                          (complements title) --  name        CDATA          #IMPLIED  -- name of frame for targetting --  src         %URI;          #IMPLIED  -- source of frame content --  frameborder (1|0)          1         -- request frame borders? --  marginwidth %Pixels;       #IMPLIED  -- margin widths in pixels --  marginheight %Pixels;      #IMPLIED  -- margin height in pixels --  scrolling   (yes|no|auto)  auto      -- scrollbar or none --  align       %IAlign;       #IMPLIED  -- vertical or horizontal alignment --  height      %Length;       #IMPLIED  -- frame height --  width       %Length;       #IMPLIED  -- frame width --  ><![ %HTML.Frameset; [<!ENTITY % noframes.content "(BODY) -(NOFRAMES)">]]><!ENTITY % noframes.content "(%flow;)*"><!ELEMENT NOFRAMES - - %noframes.content; -- alternate content container for non frame-based rendering --><!ATTLIST NOFRAMES  %attrs;                              -- %coreattrs, %i18n, %events --  ><!--================ Document Head =======================================--><!-- %head.misc; defined earlier on as "SCRIPT|STYLE|META|LINK|OBJECT" --><!ENTITY % head.content "TITLE & ISINDEX? & BASE?"><!ELEMENT HEAD O O (%head.content;) +(%head.misc;) -- document head --><!ATTLIST HEAD  %i18n;                               -- lang, dir --  profile     %URI;          #IMPLIED  -- named dictionary of meta info --  ><!-- The TITLE element is not considered part of the flow of text.       It should be displayed, for example as the page header or       window title. Exactly one title is required per document.    --><!ELEMENT TITLE - - (#PCDATA) -(%head.misc;) -- document title --><!ATTLIST TITLE %i18n><!ELEMENT ISINDEX - O EMPTY            -- single line prompt --><!ATTLIST ISINDEX  %coreattrs;                          -- id, class, style, title --  %i18n;                               -- lang, dir --  prompt      %Text;         #IMPLIED  -- prompt message --><!ELEMENT BASE - O EMPTY               -- document base URI --><!ATTLIST BASE  href        %URI;          #IMPLIED  -- URI that acts as base URI --  target      %FrameTarget;  #IMPLIED  -- render in this frame --  ><!ELEMENT META - O EMPTY               -- generic metainformation --><!ATTLIST META  %i18n;                               -- lang, dir, for use with content --  http-equiv  NAME           #IMPLIED  -- HTTP response header name  --  name        NAME           #IMPLIED  -- metainformation name --  content     CDATA          #REQUIRED -- associated information --  scheme      CDATA          #IMPLIED  -- select form of content --  ><!ELEMENT STYLE - - %StyleSheet        -- style info --><!ATTLIST STYLE  %i18n;                               -- lang, dir, for use with title --  type        %ContentType;  #REQUIRED -- content type of style language --  media       %MediaDesc;    #IMPLIED  -- designed for use with these media --  title       %Text;         #IMPLIED  -- advisory title --  ><!ELEMENT SCRIPT - - %Script;          -- script statements --><!ATTLIST SCRIPT  charset     %Charset;      #IMPLIED  -- char encoding of linked resource --  type        %ContentType;  #REQUIRED -- content type of script language --  language    CDATA          #IMPLIED  -- predefined script language name --  src         %URI;          #IMPLIED  -- URI for an external script --  defer       (defer)        #IMPLIED  -- UA may defer execution of script --  event       CDATA          #IMPLIED  -- reserved for possible future use --  for         %URI;          #IMPLIED  -- reserved for possible future use --  ><!ELEMENT NOSCRIPT - - (%flow;)*  -- alternate content container for non script-based rendering --><!ATTLIST NOSCRIPT  %attrs;                              -- %coreattrs, %i18n, %events --  ><!--================ Document Structure ==================================--><!ENTITY % version "version CDATA #FIXED '%HTML.Version;'"><![ %HTML.Frameset; [<!ENTITY % html.content "HEAD, FRAMESET">]]><!ENTITY % html.content "HEAD, BODY"><!ELEMENT HTML O O (%html.content;)    -- document root element --><!ATTLIST HTML  %i18n;                               -- lang, dir --  %version;  >
?
  XHTML:    Extensible HTML version 1.0 Strict DTD<!--   Extensible HTML version 1.0 Strict DTD   This is the same as HTML 4 Strict except for   changes due to the differences between XML and SGML.   Namespace = http://www.w3.org/1999/xhtml   For further information, see: http://www.w3.org/TR/xhtml1   Copyright (c) 1998-2002 W3C (MIT, INRIA, Keio),   All Rights Reserved.   This DTD module is identified by the PUBLIC and SYSTEM identifiers:   PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"   SYSTEM "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"   $Revision: 1.1 $   $Date: 2002/08/01 13:56:03 $--><!--================ Character mnemonic entities =========================--><!ENTITY % HTMLlat1 PUBLIC   "-//W3C//ENTITIES Latin 1 for XHTML//EN"   "xhtml-lat1.ent">%HTMLlat1;<!ENTITY % HTMLsymbol PUBLIC   "-//W3C//ENTITIES Symbols for XHTML//EN"   "xhtml-symbol.ent">%HTMLsymbol;<!ENTITY % HTMLspecial PUBLIC   "-//W3C//ENTITIES Special for XHTML//EN"   "xhtml-special.ent">%HTMLspecial;<!--================== Imported Names ====================================--><!ENTITY % ContentType "CDATA">    <!-- media type, as per [RFC2045] --><!ENTITY % ContentTypes "CDATA">    <!-- comma-separated list of media types, as per [RFC2045] --><!ENTITY % Charset "CDATA">    <!-- a character encoding, as per [RFC2045] --><!ENTITY % Charsets "CDATA">    <!-- a space separated list of character encodings, as per [RFC2045] --><!ENTITY % LanguageCode "NMTOKEN">    <!-- a language code, as per [RFC3066] --><!ENTITY % Character "CDATA">    <!-- a single character, as per section 2.2 of [XML] --><!ENTITY % Number "CDATA">    <!-- one or more digits --><!ENTITY % LinkTypes "CDATA">    <!-- space-separated list of link types --><!ENTITY % MediaDesc "CDATA">    <!-- single or comma-separated list of media descriptors --><!ENTITY % URI "CDATA">    <!-- a Uniform Resource Identifier, see [RFC2396] --><!ENTITY % UriList "CDATA">    <!-- a space separated list of Uniform Resource Identifiers --><!ENTITY % Datetime "CDATA">    <!-- date and time information. ISO date format --><!ENTITY % Script "CDATA">    <!-- script expression --><!ENTITY % StyleSheet "CDATA">    <!-- style sheet data --><!ENTITY % Text "CDATA">    <!-- used for titles etc. --><!ENTITY % Length "CDATA">    <!-- nn for pixels or nn% for percentage length --><!ENTITY % MultiLength "CDATA">    <!-- pixel, percentage, or relative --><!ENTITY % Pixels "CDATA">    <!-- integer representing length in pixels --><!-- these are used for image maps --><!ENTITY % Shape "(rect|circle|poly|default)"><!ENTITY % Coords "CDATA">    <!-- comma separated list of lengths --><!--=================== Generic Attributes ===============================--><!-- core attributes common to most elements  id       document-wide unique id  class    space separated list of classes  style    associated style info  title    advisory title/amplification--><!ENTITY % coreattrs "id          ID             #IMPLIED  class       CDATA          #IMPLIED  style       %StyleSheet;   #IMPLIED  title       %Text;         #IMPLIED"  ><!-- internationalization attributes  lang        language code (backwards compatible)  xml:lang    language code (as per XML 1.0 spec)  dir         direction for weak/neutral text--><!ENTITY % i18n "lang        %LanguageCode; #IMPLIED  xml:lang    %LanguageCode; #IMPLIED  dir         (ltr|rtl)      #IMPLIED"  ><!-- attributes for common UI events  onclick     a pointer button was clicked  ondblclick  a pointer button was double clicked  onmousedown a pointer button was pressed down  onmouseup   a pointer button was released  onmousemove a pointer was moved onto the element  onmouseout  a pointer was moved away from the element  onkeypress  a key was pressed and released  onkeydown   a key was pressed down  onkeyup     a key was released--><!ENTITY % events "onclick     %Script;       #IMPLIED  ondblclick  %Script;       #IMPLIED  onmousedown %Script;       #IMPLIED  onmouseup   %Script;       #IMPLIED  onmouseover %Script;       #IMPLIED  onmousemove %Script;       #IMPLIED  onmouseout  %Script;       #IMPLIED  onkeypress  %Script;       #IMPLIED  onkeydown   %Script;       #IMPLIED  onkeyup     %Script;       #IMPLIED"  ><!-- attributes for elements that can get the focus  accesskey   accessibility key character  tabindex    position in tabbing order  onfocus     the element got the focus  onblur      the element lost the focus--><!ENTITY % focus "accesskey   %Character;    #IMPLIED  tabindex    %Number;       #IMPLIED  onfocus     %Script;       #IMPLIED  onblur      %Script;       #IMPLIED"  ><!ENTITY % attrs "%coreattrs; %i18n; %events;"><!--=================== Text Elements ====================================--><!ENTITY % special.pre   "br | span | bdo | map"><!ENTITY % special   "%special.pre; | object | img "><!ENTITY % fontstyle "tt | i | b | big | small "><!ENTITY % phrase "em | strong | dfn | code | q |                   samp | kbd | var | cite | abbr | acronym | sub | sup "><!ENTITY % inline.forms "input | select | textarea | label | button"><!-- these can occur at block or inline level --><!ENTITY % misc.inline "ins | del | script"><!-- these can only occur at block level --><!ENTITY % misc "noscript | %misc.inline;"><!ENTITY % inline "a | %special; | %fontstyle; | %phrase; | %inline.forms;"><!-- %Inline; covers inline or "text-level" elements --><!ENTITY % Inline "(#PCDATA | %inline; | %misc.inline;)*"><!--================== Block level elements ==============================--><!ENTITY % heading "h1|h2|h3|h4|h5|h6"><!ENTITY % lists "ul | ol | dl"><!ENTITY % blocktext "pre | hr | blockquote | address"><!ENTITY % block     "p | %heading; | div | %lists; | %blocktext; | fieldset | table"><!ENTITY % Block "(%block; | form | %misc;)*"><!-- %Flow; mixes block and inline and is used for list items etc. --><!ENTITY % Flow "(#PCDATA | %block; | form | %inline; | %misc;)*"><!--================== Content models for exclusions =====================--><!-- a elements use %Inline; excluding a --><!ENTITY % a.content   "(#PCDATA | %special; | %fontstyle; | %phrase; | %inline.forms; | %misc.inline;)*"><!-- pre uses %Inline excluding big, small, sup or sup --><!ENTITY % pre.content   "(#PCDATA | a | %fontstyle; | %phrase; | %special.pre; | %misc.inline;      | %inline.forms;)*"><!-- form uses %Block; excluding form --><!ENTITY % form.content "(%block; | %misc;)*"><!-- button uses %Flow; but excludes a, form and form controls --><!ENTITY % button.content   "(#PCDATA | p | %heading; | div | %lists; | %blocktext; |    table | %special; | %fontstyle; | %phrase; | %misc;)*"><!--================ Document Structure ==================================--><!-- the namespace URI designates the document profile --><!ELEMENT html (head, body)><!ATTLIST html  %i18n;  id          ID             #IMPLIED  xmlns       %URI;          #FIXED 'http://www.w3.org/1999/xhtml'  ><!--================ Document Head =======================================--><!ENTITY % head.misc "(script|style|meta|link|object)*"><!-- content model is %head.misc; combined with a single     title and an optional base element in any order --><!ELEMENT head (%head.misc;,     ((title, %head.misc;, (base, %head.misc;)?) |      (base, %head.misc;, (title, %head.misc;))))><!ATTLIST head  %i18n;  id          ID             #IMPLIED  profile     %URI;          #IMPLIED  ><!-- The title element is not considered part of the flow of text.       It should be displayed, for example as the page header or       window title. Exactly one title is required per document.    --><!ELEMENT title (#PCDATA)><!ATTLIST title  %i18n;  id          ID             #IMPLIED  ><!-- document base URI --><!ELEMENT base EMPTY><!ATTLIST base  href        %URI;          #REQUIRED  id          ID             #IMPLIED  ><!-- generic metainformation --><!ELEMENT meta EMPTY><!ATTLIST meta  %i18n;  id          ID             #IMPLIED  http-equiv  CDATA          #IMPLIED  name        CDATA          #IMPLIED  content     CDATA          #REQUIRED  scheme      CDATA          #IMPLIED  ><!--  Relationship values can be used in principle:   a) for document specific toolbars/menus when used      with the link element in document head e.g.        start, contents, previous, next, index, end, help   b) to link to a separate style sheet (rel="stylesheet")   c) to make a link to a script (rel="script")   d) by stylesheets to control how collections of      html nodes are rendered into printed documents   e) to make a link to a printable version of this document      e.g. a PostScript or PDF version (rel="alternate" media="print")--><!ELEMENT link EMPTY><!ATTLIST link  %attrs;  charset     %Charset;      #IMPLIED  href        %URI;          #IMPLIED  hreflang    %LanguageCode; #IMPLIED  type        %ContentType;  #IMPLIED  rel         %LinkTypes;    #IMPLIED  rev         %LinkTypes;    #IMPLIED  media       %MediaDesc;    #IMPLIED  ><!-- style info, which may include CDATA sections --><!ELEMENT style (#PCDATA)><!ATTLIST style  %i18n;  id          ID             #IMPLIED  type        %ContentType;  #REQUIRED  media       %MediaDesc;    #IMPLIED  title       %Text;         #IMPLIED  xml:space   (preserve)     #FIXED 'preserve'  ><!-- script statements, which may include CDATA sections --><!ELEMENT script (#PCDATA)><!ATTLIST script  id          ID             #IMPLIED  charset     %Charset;      #IMPLIED  type        %ContentType;  #REQUIRED  src         %URI;          #IMPLIED  defer       (defer)        #IMPLIED  xml:space   (preserve)     #FIXED 'preserve'  ><!-- alternate content container for non script-based rendering --><!ELEMENT noscript %Block;><!ATTLIST noscript  %attrs;  ><!--=================== Document Body ====================================--><!ELEMENT body %Block;><!ATTLIST body  %attrs;  onload          %Script;   #IMPLIED  onunload        %Script;   #IMPLIED  ><!ELEMENT div %Flow;>  <!-- generic language/style container --><!ATTLIST div  %attrs;  ><!--=================== Paragraphs =======================================--><!ELEMENT p %Inline;><!ATTLIST p  %attrs;  ><!--=================== Headings =========================================--><!--  There are six levels of headings from h1 (the most important)  to h6 (the least important).--><!ELEMENT h1  %Inline;><!ATTLIST h1   %attrs;   ><!ELEMENT h2 %Inline;><!ATTLIST h2   %attrs;   ><!ELEMENT h3 %Inline;><!ATTLIST h3   %attrs;   ><!ELEMENT h4 %Inline;><!ATTLIST h4   %attrs;   ><!ELEMENT h5 %Inline;><!ATTLIST h5   %attrs;   ><!ELEMENT h6 %Inline;><!ATTLIST h6   %attrs;   ><!--=================== Lists ============================================--><!-- Unordered list --><!ELEMENT ul (li)+><!ATTLIST ul  %attrs;  ><!-- Ordered (numbered) list --><!ELEMENT ol (li)+><!ATTLIST ol  %attrs;  ><!-- list item --><!ELEMENT li %Flow;><!ATTLIST li  %attrs;  ><!-- definition lists - dt for term, dd for its definition --><!ELEMENT dl (dt|dd)+><!ATTLIST dl  %attrs;  ><!ELEMENT dt %Inline;><!ATTLIST dt  %attrs;  ><!ELEMENT dd %Flow;><!ATTLIST dd  %attrs;  ><!--=================== Address ==========================================--><!-- information on author --><!ELEMENT address %Inline;><!ATTLIST address  %attrs;  ><!--=================== Horizontal Rule ==================================--><!ELEMENT hr EMPTY><!ATTLIST hr  %attrs;  ><!--=================== Preformatted Text ================================--><!-- content is %Inline; excluding "img|object|big|small|sub|sup" --><!ELEMENT pre %pre.content;><!ATTLIST pre  %attrs;  xml:space (preserve) #FIXED 'preserve'  ><!--=================== Block-like Quotes ================================--><!ELEMENT blockquote %Block;><!ATTLIST blockquote  %attrs;  cite        %URI;          #IMPLIED  ><!--=================== Inserted/Deleted Text ============================--><!--  ins/del are allowed in block and inline content, but its  inappropriate to include block content within an ins element  occurring in inline content.--><!ELEMENT ins %Flow;><!ATTLIST ins  %attrs;  cite        %URI;          #IMPLIED  datetime    %Datetime;     #IMPLIED  ><!ELEMENT del %Flow;><!ATTLIST del  %attrs;  cite        %URI;          #IMPLIED  datetime    %Datetime;     #IMPLIED  ><!--================== The Anchor Element ================================--><!-- content is %Inline; except that anchors shouldn't be nested --><!ELEMENT a %a.content;><!ATTLIST a  %attrs;  %focus;  charset     %Charset;      #IMPLIED  type        %ContentType;  #IMPLIED  name        NMTOKEN        #IMPLIED  href        %URI;          #IMPLIED  hreflang    %LanguageCode; #IMPLIED  rel         %LinkTypes;    #IMPLIED  rev         %LinkTypes;    #IMPLIED  shape       %Shape;        "rect"  coords      %Coords;       #IMPLIED  ><!--===================== Inline Elements ================================--><!ELEMENT span %Inline;> <!-- generic language/style container --><!ATTLIST span  %attrs;  ><!ELEMENT bdo %Inline;>  <!-- I18N BiDi over-ride --><!ATTLIST bdo  %coreattrs;  %events;  lang        %LanguageCode; #IMPLIED  xml:lang    %LanguageCode; #IMPLIED  dir         (ltr|rtl)      #REQUIRED  ><!ELEMENT br EMPTY>   <!-- forced line break --><!ATTLIST br  %coreattrs;  ><!ELEMENT em %Inline;>   <!-- emphasis --><!ATTLIST em %attrs;><!ELEMENT strong %Inline;>   <!-- strong emphasis --><!ATTLIST strong %attrs;><!ELEMENT dfn %Inline;>   <!-- definitional --><!ATTLIST dfn %attrs;><!ELEMENT code %Inline;>   <!-- program code --><!ATTLIST code %attrs;><!ELEMENT samp %Inline;>   <!-- sample --><!ATTLIST samp %attrs;><!ELEMENT kbd %Inline;>  <!-- something user would type --><!ATTLIST kbd %attrs;><!ELEMENT var %Inline;>   <!-- variable --><!ATTLIST var %attrs;><!ELEMENT cite %Inline;>   <!-- citation --><!ATTLIST cite %attrs;><!ELEMENT abbr %Inline;>   <!-- abbreviation --><!ATTLIST abbr %attrs;><!ELEMENT acronym %Inline;>   <!-- acronym --><!ATTLIST acronym %attrs;><!ELEMENT q %Inline;>   <!-- inlined quote --><!ATTLIST q  %attrs;  cite        %URI;          #IMPLIED  ><!ELEMENT sub %Inline;> <!-- subscript --><!ATTLIST sub %attrs;><!ELEMENT sup %Inline;> <!-- superscript --><!ATTLIST sup %attrs;><!ELEMENT tt %Inline;>   <!-- fixed pitch font --><!ATTLIST tt %attrs;><!ELEMENT i %Inline;>   <!-- italic font --><!ATTLIST i %attrs;><!ELEMENT b %Inline;>   <!-- bold font --><!ATTLIST b %attrs;><!ELEMENT big %Inline;>   <!-- bigger font --><!ATTLIST big %attrs;><!ELEMENT small %Inline;>   <!-- smaller font --><!ATTLIST small %attrs;><!--==================== Object ======================================--><!--  object is used to embed objects as part of HTML pages.  param elements should precede other content. Parameters  can also be expressed as attribute/value pairs on the  object element itself when brevity is desired.--><!ELEMENT object (#PCDATA | param | %block; | form | %inline; | %misc;)*><!ATTLIST object  %attrs;  declare     (declare)      #IMPLIED  classid     %URI;          #IMPLIED  codebase    %URI;          #IMPLIED  data        %URI;          #IMPLIED  type        %ContentType;  #IMPLIED  codetype    %ContentType;  #IMPLIED  archive     %UriList;      #IMPLIED  standby     %Text;         #IMPLIED  height      %Length;       #IMPLIED  width       %Length;       #IMPLIED  usemap      %URI;          #IMPLIED  name        NMTOKEN        #IMPLIED  tabindex    %Number;       #IMPLIED  ><!--  param is used to supply a named property value.  In XML it would seem natural to follow RDF and support an  abbreviated syntax where the param elements are replaced  by attribute value pairs on the object start tag.--><!ELEMENT param EMPTY><!ATTLIST param  id          ID             #IMPLIED  name        CDATA          #IMPLIED  value       CDATA          #IMPLIED  valuetype   (data|ref|object) "data"  type        %ContentType;  #IMPLIED  ><!--=================== Images ===========================================--><!--   To avoid accessibility problems for people who aren't   able to see the image, you should provide a text   description using the alt and longdesc attributes.   In addition, avoid the use of server-side image maps.   Note that in this DTD there is no name attribute. That   is only available in the transitional and frameset DTD.--><!ELEMENT img EMPTY><!ATTLIST img  %attrs;  src         %URI;          #REQUIRED  alt         %Text;         #REQUIRED  longdesc    %URI;          #IMPLIED  height      %Length;       #IMPLIED  width       %Length;       #IMPLIED  usemap      %URI;          #IMPLIED  ismap       (ismap)        #IMPLIED  ><!-- usemap points to a map element which may be in this document  or an external document, although the latter is not widely supported --><!--================== Client-side image maps ============================--><!-- These can be placed in the same document or grouped in a     separate document although this isn't yet widely supported --><!ELEMENT map ((%block; | form | %misc;)+ | area+)><!ATTLIST map  %i18n;  %events;  id          ID             #REQUIRED  class       CDATA          #IMPLIED  style       %StyleSheet;   #IMPLIED  title       %Text;         #IMPLIED  name        NMTOKEN        #IMPLIED  ><!ELEMENT area EMPTY><!ATTLIST area  %attrs;  %focus;  shape       %Shape;        "rect"  coords      %Coords;       #IMPLIED  href        %URI;          #IMPLIED  nohref      (nohref)       #IMPLIED  alt         %Text;         #REQUIRED  ><!--================ Forms ===============================================--><!ELEMENT form %form.content;>   <!-- forms shouldn't be nested --><!ATTLIST form  %attrs;  action      %URI;          #REQUIRED  method      (get|post)     "get"  enctype     %ContentType;  "application/x-www-form-urlencoded"  onsubmit    %Script;       #IMPLIED  onreset     %Script;       #IMPLIED  accept      %ContentTypes; #IMPLIED  accept-charset %Charsets;  #IMPLIED  ><!--  Each label must not contain more than ONE field  Label elements shouldn't be nested.--><!ELEMENT label %Inline;><!ATTLIST label  %attrs;  for         IDREF          #IMPLIED  accesskey   %Character;    #IMPLIED  onfocus     %Script;       #IMPLIED  onblur      %Script;       #IMPLIED  ><!ENTITY % InputType  "(text | password | checkbox |    radio | submit | reset |    file | hidden | image | button)"   ><!-- the name attribute is required for all but submit & reset --><!ELEMENT input EMPTY>     <!-- form control --><!ATTLIST input  %attrs;  %focus;  type        %InputType;    "text"  name        CDATA          #IMPLIED  value       CDATA          #IMPLIED  checked     (checked)      #IMPLIED  disabled    (disabled)     #IMPLIED  readonly    (readonly)     #IMPLIED  size        CDATA          #IMPLIED  maxlength   %Number;       #IMPLIED  src         %URI;          #IMPLIED  alt         CDATA          #IMPLIED  usemap      %URI;          #IMPLIED  onselect    %Script;       #IMPLIED  onchange    %Script;       #IMPLIED  accept      %ContentTypes; #IMPLIED  ><!ELEMENT select (optgroup|option)+>  <!-- option selector --><!ATTLIST select  %attrs;  name        CDATA          #IMPLIED  size        %Number;       #IMPLIED  multiple    (multiple)     #IMPLIED  disabled    (disabled)     #IMPLIED  tabindex    %Number;       #IMPLIED  onfocus     %Script;       #IMPLIED  onblur      %Script;       #IMPLIED  onchange    %Script;       #IMPLIED  ><!ELEMENT optgroup (option)+>   <!-- option group --><!ATTLIST optgroup  %attrs;  disabled    (disabled)     #IMPLIED  label       %Text;         #REQUIRED  ><!ELEMENT option (#PCDATA)>     <!-- selectable choice --><!ATTLIST option  %attrs;  selected    (selected)     #IMPLIED  disabled    (disabled)     #IMPLIED  label       %Text;         #IMPLIED  value       CDATA          #IMPLIED  ><!ELEMENT textarea (#PCDATA)>     <!-- multi-line text field --><!ATTLIST textarea  %attrs;  %focus;  name        CDATA          #IMPLIED  rows        %Number;       #REQUIRED  cols        %Number;       #REQUIRED  disabled    (disabled)     #IMPLIED  readonly    (readonly)     #IMPLIED  onselect    %Script;       #IMPLIED  onchange    %Script;       #IMPLIED  ><!--  The fieldset element is used to group form fields.  Only one legend element should occur in the content  and if present should only be preceded by whitespace.--><!ELEMENT fieldset (#PCDATA | legend | %block; | form | %inline; | %misc;)*><!ATTLIST fieldset  %attrs;  ><!ELEMENT legend %Inline;>     <!-- fieldset label --><!ATTLIST legend  %attrs;  accesskey   %Character;    #IMPLIED  ><!-- Content is %Flow; excluding a, form and form controls--><!ELEMENT button %button.content;>  <!-- push button --><!ATTLIST button  %attrs;  %focus;  name        CDATA          #IMPLIED  value       CDATA          #IMPLIED  type        (button|submit|reset) "submit"  disabled    (disabled)     #IMPLIED  ><!--======================= Tables =======================================--><!-- Derived from IETF HTML table standard, see [RFC1942] --><!-- The border attribute sets the thickness of the frame around the table. The default units are screen pixels. The frame attribute specifies which parts of the frame around the table should be rendered. The values are not the same as CALS to avoid a name clash with the valign attribute.--><!ENTITY % TFrame "(void|above|below|hsides|lhs|rhs|vsides|box|border)"><!-- The rules attribute defines which rules to draw between cells: If rules is absent then assume:     "none" if border is absent or border="0" otherwise "all"--><!ENTITY % TRules "(none | groups | rows | cols | all)"> <!-- horizontal alignment attributes for cell contents  char        alignment char, e.g. char=':'  charoff     offset for alignment char--><!ENTITY % cellhalign  "align      (left|center|right|justify|char) #IMPLIED   char       %Character;    #IMPLIED   charoff    %Length;       #IMPLIED"  ><!-- vertical alignment attributes for cell contents --><!ENTITY % cellvalign  "valign     (top|middle|bottom|baseline) #IMPLIED"  ><!ELEMENT table     (caption?, (col*|colgroup*), thead?, tfoot?, (tbody+|tr+))><!ELEMENT caption  %Inline;><!ELEMENT thead    (tr)+><!ELEMENT tfoot    (tr)+><!ELEMENT tbody    (tr)+><!ELEMENT colgroup (col)*><!ELEMENT col      EMPTY><!ELEMENT tr       (th|td)+><!ELEMENT th       %Flow;><!ELEMENT td       %Flow;><!ATTLIST table  %attrs;  summary     %Text;         #IMPLIED  width       %Length;       #IMPLIED  border      %Pixels;       #IMPLIED  frame       %TFrame;       #IMPLIED  rules       %TRules;       #IMPLIED  cellspacing %Length;       #IMPLIED  cellpadding %Length;       #IMPLIED  ><!ATTLIST caption  %attrs;  ><!--colgroup groups a set of col elements. It allows you to groupseveral semantically related columns together.--><!ATTLIST colgroup  %attrs;  span        %Number;       "1"  width       %MultiLength;  #IMPLIED  %cellhalign;  %cellvalign;  ><!-- col elements define the alignment properties for cells in one or more columns. The width attribute specifies the width of the columns, e.g.     width=64        width in screen pixels     width=0.5*      relative width of 0.5 The span attribute causes the attributes of one col element to apply to more than one column.--><!ATTLIST col  %attrs;  span        %Number;       "1"  width       %MultiLength;  #IMPLIED  %cellhalign;  %cellvalign;  ><!--    Use thead to duplicate headers when breaking table    across page boundaries, or for static headers when    tbody sections are rendered in scrolling panel.    Use tfoot to duplicate footers when breaking table    across page boundaries, or for static footers when    tbody sections are rendered in scrolling panel.    Use multiple tbody sections when rules are needed    between groups of table rows.--><!ATTLIST thead  %attrs;  %cellhalign;  %cellvalign;  ><!ATTLIST tfoot  %attrs;  %cellhalign;  %cellvalign;  ><!ATTLIST tbody  %attrs;  %cellhalign;  %cellvalign;  ><!ATTLIST tr  %attrs;  %cellhalign;  %cellvalign;  ><!-- Scope is simpler than headers attribute for common tables --><!ENTITY % Scope "(row|col|rowgroup|colgroup)"><!-- th is for headers, td for data and for cells acting as both --><!ATTLIST th  %attrs;  abbr        %Text;         #IMPLIED  axis        CDATA          #IMPLIED  headers     IDREFS         #IMPLIED  scope       %Scope;        #IMPLIED  rowspan     %Number;       "1"  colspan     %Number;       "1"  %cellhalign;  %cellvalign;  ><!ATTLIST td  %attrs;  abbr        %Text;         #IMPLIED  axis        CDATA          #IMPLIED  headers     IDREFS         #IMPLIED  scope       %Scope;        #IMPLIED  rowspan     %Number;       "1"  colspan     %Number;       "1"  %cellhalign;  %cellvalign;  >Extensible HTML version 1.0 Transitional DTD<!--   Extensible HTML version 1.0 Transitional DTD   This is the same as HTML 4 Transitional except for   changes due to the differences between XML and SGML.   Namespace = http://www.w3.org/1999/xhtml   For further information, see: http://www.w3.org/TR/xhtml1   Copyright (c) 1998-2002 W3C (MIT, INRIA, Keio),   All Rights Reserved.    This DTD module is identified by the PUBLIC and SYSTEM identifiers:   PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"   SYSTEM "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"   $Revision: 1.2 $   $Date: 2002/08/01 18:37:55 $--><!--================ Character mnemonic entities =========================--><!ENTITY % HTMLlat1 PUBLIC   "-//W3C//ENTITIES Latin 1 for XHTML//EN"   "xhtml-lat1.ent">%HTMLlat1;<!ENTITY % HTMLsymbol PUBLIC   "-//W3C//ENTITIES Symbols for XHTML//EN"   "xhtml-symbol.ent">%HTMLsymbol;<!ENTITY % HTMLspecial PUBLIC   "-//W3C//ENTITIES Special for XHTML//EN"   "xhtml-special.ent">%HTMLspecial;<!--================== Imported Names ====================================--><!ENTITY % ContentType "CDATA">    <!-- media type, as per [RFC2045] --><!ENTITY % ContentTypes "CDATA">    <!-- comma-separated list of media types, as per [RFC2045] --><!ENTITY % Charset "CDATA">    <!-- a character encoding, as per [RFC2045] --><!ENTITY % Charsets "CDATA">    <!-- a space separated list of character encodings, as per [RFC2045] --><!ENTITY % LanguageCode "NMTOKEN">    <!-- a language code, as per [RFC3066] --><!ENTITY % Character "CDATA">    <!-- a single character, as per section 2.2 of [XML] --><!ENTITY % Number "CDATA">    <!-- one or more digits --><!ENTITY % LinkTypes "CDATA">    <!-- space-separated list of link types --><!ENTITY % MediaDesc "CDATA">    <!-- single or comma-separated list of media descriptors --><!ENTITY % URI "CDATA">    <!-- a Uniform Resource Identifier, see [RFC2396] --><!ENTITY % UriList "CDATA">    <!-- a space separated list of Uniform Resource Identifiers --><!ENTITY % Datetime "CDATA">    <!-- date and time information. ISO date format --><!ENTITY % Script "CDATA">    <!-- script expression --><!ENTITY % StyleSheet "CDATA">    <!-- style sheet data --><!ENTITY % Text "CDATA">    <!-- used for titles etc. --><!ENTITY % FrameTarget "NMTOKEN">    <!-- render in this frame --><!ENTITY % Length "CDATA">    <!-- nn for pixels or nn% for percentage length --><!ENTITY % MultiLength "CDATA">    <!-- pixel, percentage, or relative --><!ENTITY % Pixels "CDATA">    <!-- integer representing length in pixels --><!-- these are used for image maps --><!ENTITY % Shape "(rect|circle|poly|default)"><!ENTITY % Coords "CDATA">    <!-- comma separated list of lengths --><!-- used for object, applet, img, input and iframe --><!ENTITY % ImgAlign "(top|middle|bottom|left|right)"><!-- a color using sRGB: #RRGGBB as Hex values --><!ENTITY % Color "CDATA"><!-- There are also 16 widely known color names with their sRGB values:    Black  = #000000    Green  = #008000    Silver = #C0C0C0    Lime   = #00FF00    Gray   = #808080    Olive  = #808000    White  = #FFFFFF    Yellow = #FFFF00    Maroon = #800000    Navy   = #000080    Red    = #FF0000    Blue   = #0000FF    Purple = #800080    Teal   = #008080    Fuchsia= #FF00FF    Aqua   = #00FFFF--><!--=================== Generic Attributes ===============================--><!-- core attributes common to most elements  id       document-wide unique id  class    space separated list of classes  style    associated style info  title    advisory title/amplification--><!ENTITY % coreattrs "id          ID             #IMPLIED  class       CDATA          #IMPLIED  style       %StyleSheet;   #IMPLIED  title       %Text;         #IMPLIED"  ><!-- internationalization attributes  lang        language code (backwards compatible)  xml:lang    language code (as per XML 1.0 spec)  dir         direction for weak/neutral text--><!ENTITY % i18n "lang        %LanguageCode; #IMPLIED  xml:lang    %LanguageCode; #IMPLIED  dir         (ltr|rtl)      #IMPLIED"  ><!-- attributes for common UI events  onclick     a pointer button was clicked  ondblclick  a pointer button was double clicked  onmousedown a pointer button was pressed down  onmouseup   a pointer button was released  onmousemove a pointer was moved onto the element  onmouseout  a pointer was moved away from the element  onkeypress  a key was pressed and released  onkeydown   a key was pressed down  onkeyup     a key was released--><!ENTITY % events "onclick     %Script;       #IMPLIED  ondblclick  %Script;       #IMPLIED  onmousedown %Script;       #IMPLIED  onmouseup   %Script;       #IMPLIED  onmouseover %Script;       #IMPLIED  onmousemove %Script;       #IMPLIED  onmouseout  %Script;       #IMPLIED  onkeypress  %Script;       #IMPLIED  onkeydown   %Script;       #IMPLIED  onkeyup     %Script;       #IMPLIED"  ><!-- attributes for elements that can get the focus  accesskey   accessibility key character  tabindex    position in tabbing order  onfocus     the element got the focus  onblur      the element lost the focus--><!ENTITY % focus "accesskey   %Character;    #IMPLIED  tabindex    %Number;       #IMPLIED  onfocus     %Script;       #IMPLIED  onblur      %Script;       #IMPLIED"  ><!ENTITY % attrs "%coreattrs; %i18n; %events;"><!-- text alignment for p, div, h1-h6. The default is     align="left" for ltr headings, "right" for rtl --><!ENTITY % TextAlign "align (left|center|right|justify) #IMPLIED"><!--=================== Text Elements ====================================--><!ENTITY % special.extra   "object | applet | img | map | iframe"><!ENTITY % special.basic"br | span | bdo"><!ENTITY % special   "%special.basic; | %special.extra;"><!ENTITY % fontstyle.extra "big | small | font | basefont"><!ENTITY % fontstyle.basic "tt | i | b | u                      | s | strike "><!ENTITY % fontstyle "%fontstyle.basic; | %fontstyle.extra;"><!ENTITY % phrase.extra "sub | sup"><!ENTITY % phrase.basic "em | strong | dfn | code | q |                   samp | kbd | var | cite | abbr | acronym"><!ENTITY % phrase "%phrase.basic; | %phrase.extra;"><!ENTITY % inline.forms "input | select | textarea | label | button"><!-- these can occur at block or inline level --><!ENTITY % misc.inline "ins | del | script"><!-- these can only occur at block level --><!ENTITY % misc "noscript | %misc.inline;"><!ENTITY % inline "a | %special; | %fontstyle; | %phrase; | %inline.forms;"><!-- %Inline; covers inline or "text-level" elements --><!ENTITY % Inline "(#PCDATA | %inline; | %misc.inline;)*"><!--================== Block level elements ==============================--><!ENTITY % heading "h1|h2|h3|h4|h5|h6"><!ENTITY % lists "ul | ol | dl | menu | dir"><!ENTITY % blocktext "pre | hr | blockquote | address | center | noframes"><!ENTITY % block    "p | %heading; | div | %lists; | %blocktext; | isindex |fieldset | table"><!-- %Flow; mixes block and inline and is used for list items etc. --><!ENTITY % Flow "(#PCDATA | %block; | form | %inline; | %misc;)*"><!--================== Content models for exclusions =====================--><!-- a elements use %Inline; excluding a --><!ENTITY % a.content   "(#PCDATA | %special; | %fontstyle; | %phrase; | %inline.forms; | %misc.inline;)*"><!-- pre uses %Inline excluding img, object, applet, big, small,     font, or basefont --><!ENTITY % pre.content   "(#PCDATA | a | %special.basic; | %fontstyle.basic; | %phrase.basic; |   %inline.forms; | %misc.inline;)*"><!-- form uses %Flow; excluding form --><!ENTITY % form.content "(#PCDATA | %block; | %inline; | %misc;)*"><!-- button uses %Flow; but excludes a, form, form controls, iframe --><!ENTITY % button.content   "(#PCDATA | p | %heading; | div | %lists; | %blocktext; |      table | br | span | bdo | object | applet | img | map |      %fontstyle; | %phrase; | %misc;)*"><!--================ Document Structure ==================================--><!-- the namespace URI designates the document profile --><!ELEMENT html (head, body)><!ATTLIST html  %i18n;  id          ID             #IMPLIED  xmlns       %URI;          #FIXED 'http://www.w3.org/1999/xhtml'  ><!--================ Document Head =======================================--><!ENTITY % head.misc "(script|style|meta|link|object|isindex)*"><!-- content model is %head.misc; combined with a single     title and an optional base element in any order --><!ELEMENT head (%head.misc;,     ((title, %head.misc;, (base, %head.misc;)?) |      (base, %head.misc;, (title, %head.misc;))))><!ATTLIST head  %i18n;  id          ID             #IMPLIED  profile     %URI;          #IMPLIED  ><!-- The title element is not considered part of the flow of text.       It should be displayed, for example as the page header or       window title. Exactly one title is required per document.    --><!ELEMENT title (#PCDATA)><!ATTLIST title   %i18n;  id          ID             #IMPLIED  ><!-- document base URI --><!ELEMENT base EMPTY><!ATTLIST base  id          ID             #IMPLIED  href        %URI;          #IMPLIED  target      %FrameTarget;  #IMPLIED  ><!-- generic metainformation --><!ELEMENT meta EMPTY><!ATTLIST meta  %i18n;  id          ID             #IMPLIED  http-equiv  CDATA          #IMPLIED  name        CDATA          #IMPLIED  content     CDATA          #REQUIRED  scheme      CDATA          #IMPLIED  ><!--  Relationship values can be used in principle:   a) for document specific toolbars/menus when used      with the link element in document head e.g.        start, contents, previous, next, index, end, help   b) to link to a separate style sheet (rel="stylesheet")   c) to make a link to a script (rel="script")   d) by stylesheets to control how collections of      html nodes are rendered into printed documents   e) to make a link to a printable version of this document      e.g. a PostScript or PDF version (rel="alternate" media="print")--><!ELEMENT link EMPTY><!ATTLIST link  %attrs;  charset     %Charset;      #IMPLIED  href        %URI;          #IMPLIED  hreflang    %LanguageCode; #IMPLIED  type        %ContentType;  #IMPLIED  rel         %LinkTypes;    #IMPLIED  rev         %LinkTypes;    #IMPLIED  media       %MediaDesc;    #IMPLIED  target      %FrameTarget;  #IMPLIED  ><!-- style info, which may include CDATA sections --><!ELEMENT style (#PCDATA)><!ATTLIST style  %i18n;  id          ID             #IMPLIED  type        %ContentType;  #REQUIRED  media       %MediaDesc;    #IMPLIED  title       %Text;         #IMPLIED  xml:space   (preserve)     #FIXED 'preserve'  ><!-- script statements, which may include CDATA sections --><!ELEMENT script (#PCDATA)><!ATTLIST script  id          ID             #IMPLIED  charset     %Charset;      #IMPLIED  type        %ContentType;  #REQUIRED  language    CDATA          #IMPLIED  src         %URI;          #IMPLIED  defer       (defer)        #IMPLIED  xml:space   (preserve)     #FIXED 'preserve'  ><!-- alternate content container for non script-based rendering --><!ELEMENT noscript %Flow;><!ATTLIST noscript  %attrs;  ><!--======================= Frames =======================================--><!-- inline subwindow --><!ELEMENT iframe %Flow;><!ATTLIST iframe  %coreattrs;  longdesc    %URI;          #IMPLIED  name        NMTOKEN        #IMPLIED  src         %URI;          #IMPLIED  frameborder (1|0)          "1"  marginwidth %Pixels;       #IMPLIED  marginheight %Pixels;      #IMPLIED  scrolling   (yes|no|auto)  "auto"  align       %ImgAlign;     #IMPLIED  height      %Length;       #IMPLIED  width       %Length;       #IMPLIED  ><!-- alternate content container for non frame-based rendering --><!ELEMENT noframes %Flow;><!ATTLIST noframes  %attrs;  ><!--=================== Document Body ====================================--><!ELEMENT body %Flow;><!ATTLIST body  %attrs;  onload      %Script;       #IMPLIED  onunload    %Script;       #IMPLIED  background  %URI;          #IMPLIED  bgcolor     %Color;        #IMPLIED  text        %Color;        #IMPLIED  link        %Color;        #IMPLIED  vlink       %Color;        #IMPLIED  alink       %Color;        #IMPLIED  ><!ELEMENT div %Flow;>  <!-- generic language/style container --><!ATTLIST div  %attrs;  %TextAlign;  ><!--=================== Paragraphs =======================================--><!ELEMENT p %Inline;><!ATTLIST p  %attrs;  %TextAlign;  ><!--=================== Headings =========================================--><!--  There are six levels of headings from h1 (the most important)  to h6 (the least important).--><!ELEMENT h1  %Inline;><!ATTLIST h1  %attrs;  %TextAlign;  ><!ELEMENT h2 %Inline;><!ATTLIST h2  %attrs;  %TextAlign;  ><!ELEMENT h3 %Inline;><!ATTLIST h3  %attrs;  %TextAlign;  ><!ELEMENT h4 %Inline;><!ATTLIST h4  %attrs;  %TextAlign;  ><!ELEMENT h5 %Inline;><!ATTLIST h5  %attrs;  %TextAlign;  ><!ELEMENT h6 %Inline;><!ATTLIST h6  %attrs;  %TextAlign;  ><!--=================== Lists ============================================--><!-- Unordered list bullet styles --><!ENTITY % ULStyle "(disc|square|circle)"><!-- Unordered list --><!ELEMENT ul (li)+><!ATTLIST ul  %attrs;  type        %ULStyle;     #IMPLIED  compact     (compact)     #IMPLIED  ><!-- Ordered list numbering style    1   arabic numbers      1, 2, 3, ...    a   lower alpha         a, b, c, ...    A   upper alpha         A, B, C, ...    i   lower roman         i, ii, iii, ...    I   upper roman         I, II, III, ...    The style is applied to the sequence number which by default    is reset to 1 for the first list item in an ordered list.--><!ENTITY % OLStyle "CDATA"><!-- Ordered (numbered) list --><!ELEMENT ol (li)+><!ATTLIST ol  %attrs;  type        %OLStyle;      #IMPLIED  compact     (compact)      #IMPLIED  start       %Number;       #IMPLIED  ><!-- single column list (DEPRECATED) --> <!ELEMENT menu (li)+><!ATTLIST menu  %attrs;  compact     (compact)     #IMPLIED  ><!-- multiple column list (DEPRECATED) --> <!ELEMENT dir (li)+><!ATTLIST dir  %attrs;  compact     (compact)     #IMPLIED  ><!-- LIStyle is constrained to: "(%ULStyle;|%OLStyle;)" --><!ENTITY % LIStyle "CDATA"><!-- list item --><!ELEMENT li %Flow;><!ATTLIST li  %attrs;  type        %LIStyle;      #IMPLIED  value       %Number;       #IMPLIED  ><!-- definition lists - dt for term, dd for its definition --><!ELEMENT dl (dt|dd)+><!ATTLIST dl  %attrs;  compact     (compact)      #IMPLIED  ><!ELEMENT dt %Inline;><!ATTLIST dt  %attrs;  ><!ELEMENT dd %Flow;><!ATTLIST dd  %attrs;  ><!--=================== Address ==========================================--><!-- information on author --><!ELEMENT address (#PCDATA | %inline; | %misc.inline; | p)*><!ATTLIST address  %attrs;  ><!--=================== Horizontal Rule ==================================--><!ELEMENT hr EMPTY><!ATTLIST hr  %attrs;  align       (left|center|right) #IMPLIED  noshade     (noshade)      #IMPLIED  size        %Pixels;       #IMPLIED  width       %Length;       #IMPLIED  ><!--=================== Preformatted Text ================================--><!-- content is %Inline; excluding         "img|object|applet|big|small|sub|sup|font|basefont" --><!ELEMENT pre %pre.content;><!ATTLIST pre  %attrs;  width       %Number;      #IMPLIED  xml:space   (preserve)    #FIXED 'preserve'  ><!--=================== Block-like Quotes ================================--><!ELEMENT blockquote %Flow;><!ATTLIST blockquote  %attrs;  cite        %URI;          #IMPLIED  ><!--=================== Text alignment ===================================--><!-- center content --><!ELEMENT center %Flow;><!ATTLIST center  %attrs;  ><!--=================== Inserted/Deleted Text ============================--><!--  ins/del are allowed in block and inline content, but its  inappropriate to include block content within an ins element  occurring in inline content.--><!ELEMENT ins %Flow;><!ATTLIST ins  %attrs;  cite        %URI;          #IMPLIED  datetime    %Datetime;     #IMPLIED  ><!ELEMENT del %Flow;><!ATTLIST del  %attrs;  cite        %URI;          #IMPLIED  datetime    %Datetime;     #IMPLIED  ><!--================== The Anchor Element ================================--><!-- content is %Inline; except that anchors shouldn't be nested --><!ELEMENT a %a.content;><!ATTLIST a  %attrs;  %focus;  charset     %Charset;      #IMPLIED  type        %ContentType;  #IMPLIED  name        NMTOKEN        #IMPLIED  href        %URI;          #IMPLIED  hreflang    %LanguageCode; #IMPLIED  rel         %LinkTypes;    #IMPLIED  rev         %LinkTypes;    #IMPLIED  shape       %Shape;        "rect"  coords      %Coords;       #IMPLIED  target      %FrameTarget;  #IMPLIED  ><!--===================== Inline Elements ================================--><!ELEMENT span %Inline;> <!-- generic language/style container --><!ATTLIST span  %attrs;  ><!ELEMENT bdo %Inline;>  <!-- I18N BiDi over-ride --><!ATTLIST bdo  %coreattrs;  %events;  lang        %LanguageCode; #IMPLIED  xml:lang    %LanguageCode; #IMPLIED  dir         (ltr|rtl)      #REQUIRED  ><!ELEMENT br EMPTY>   <!-- forced line break --><!ATTLIST br  %coreattrs;  clear       (left|all|right|none) "none"  ><!ELEMENT em %Inline;>   <!-- emphasis --><!ATTLIST em %attrs;><!ELEMENT strong %Inline;>   <!-- strong emphasis --><!ATTLIST strong %attrs;><!ELEMENT dfn %Inline;>   <!-- definitional --><!ATTLIST dfn %attrs;><!ELEMENT code %Inline;>   <!-- program code --><!ATTLIST code %attrs;><!ELEMENT samp %Inline;>   <!-- sample --><!ATTLIST samp %attrs;><!ELEMENT kbd %Inline;>  <!-- something user would type --><!ATTLIST kbd %attrs;><!ELEMENT var %Inline;>   <!-- variable --><!ATTLIST var %attrs;><!ELEMENT cite %Inline;>   <!-- citation --><!ATTLIST cite %attrs;><!ELEMENT abbr %Inline;>   <!-- abbreviation --><!ATTLIST abbr %attrs;><!ELEMENT acronym %Inline;>   <!-- acronym --><!ATTLIST acronym %attrs;><!ELEMENT q %Inline;>   <!-- inlined quote --><!ATTLIST q  %attrs;  cite        %URI;          #IMPLIED  ><!ELEMENT sub %Inline;> <!-- subscript --><!ATTLIST sub %attrs;><!ELEMENT sup %Inline;> <!-- superscript --><!ATTLIST sup %attrs;><!ELEMENT tt %Inline;>   <!-- fixed pitch font --><!ATTLIST tt %attrs;><!ELEMENT i %Inline;>   <!-- italic font --><!ATTLIST i %attrs;><!ELEMENT b %Inline;>   <!-- bold font --><!ATTLIST b %attrs;><!ELEMENT big %Inline;>   <!-- bigger font --><!ATTLIST big %attrs;><!ELEMENT small %Inline;>   <!-- smaller font --><!ATTLIST small %attrs;><!ELEMENT u %Inline;>   <!-- underline --><!ATTLIST u %attrs;><!ELEMENT s %Inline;>   <!-- strike-through --><!ATTLIST s %attrs;><!ELEMENT strike %Inline;>   <!-- strike-through --><!ATTLIST strike %attrs;><!ELEMENT basefont EMPTY>  <!-- base font size --><!ATTLIST basefont  id          ID             #IMPLIED  size        CDATA          #REQUIRED  color       %Color;        #IMPLIED  face        CDATA          #IMPLIED  ><!ELEMENT font %Inline;> <!-- local change to font --><!ATTLIST font  %coreattrs;  %i18n;  size        CDATA          #IMPLIED  color       %Color;        #IMPLIED  face        CDATA          #IMPLIED  ><!--==================== Object ======================================--><!--  object is used to embed objects as part of HTML pages.  param elements should precede other content. Parameters  can also be expressed as attribute/value pairs on the  object element itself when brevity is desired.--><!ELEMENT object (#PCDATA | param | %block; | form | %inline; | %misc;)*><!ATTLIST object  %attrs;  declare     (declare)      #IMPLIED  classid     %URI;          #IMPLIED  codebase    %URI;          #IMPLIED  data        %URI;          #IMPLIED  type        %ContentType;  #IMPLIED  codetype    %ContentType;  #IMPLIED  archive     %UriList;      #IMPLIED  standby     %Text;         #IMPLIED  height      %Length;       #IMPLIED  width       %Length;       #IMPLIED  usemap      %URI;          #IMPLIED  name        NMTOKEN        #IMPLIED  tabindex    %Number;       #IMPLIED  align       %ImgAlign;     #IMPLIED  border      %Pixels;       #IMPLIED  hspace      %Pixels;       #IMPLIED  vspace      %Pixels;       #IMPLIED  ><!--  param is used to supply a named property value.  In XML it would seem natural to follow RDF and support an  abbreviated syntax where the param elements are replaced  by attribute value pairs on the object start tag.--><!ELEMENT param EMPTY><!ATTLIST param  id          ID             #IMPLIED  name        CDATA          #REQUIRED  value       CDATA          #IMPLIED  valuetype   (data|ref|object) "data"  type        %ContentType;  #IMPLIED  ><!--=================== Java applet ==================================--><!--  One of code or object attributes must be present.  Place param elements before other content.--><!ELEMENT applet (#PCDATA | param | %block; | form | %inline; | %misc;)*><!ATTLIST applet  %coreattrs;  codebase    %URI;          #IMPLIED  archive     CDATA          #IMPLIED  code        CDATA          #IMPLIED  object      CDATA          #IMPLIED  alt         %Text;         #IMPLIED  name        NMTOKEN        #IMPLIED  width       %Length;       #REQUIRED  height      %Length;       #REQUIRED  align       %ImgAlign;     #IMPLIED  hspace      %Pixels;       #IMPLIED  vspace      %Pixels;       #IMPLIED  ><!--=================== Images ===========================================--><!--   To avoid accessibility problems for people who aren't   able to see the image, you should provide a text   description using the alt and longdesc attributes.   In addition, avoid the use of server-side image maps.--><!ELEMENT img EMPTY><!ATTLIST img  %attrs;  src         %URI;          #REQUIRED  alt         %Text;         #REQUIRED  name        NMTOKEN        #IMPLIED  longdesc    %URI;          #IMPLIED  height      %Length;       #IMPLIED  width       %Length;       #IMPLIED  usemap      %URI;          #IMPLIED  ismap       (ismap)        #IMPLIED  align       %ImgAlign;     #IMPLIED  border      %Length;       #IMPLIED  hspace      %Pixels;       #IMPLIED  vspace      %Pixels;       #IMPLIED  ><!-- usemap points to a map element which may be in this document  or an external document, although the latter is not widely supported --><!--================== Client-side image maps ============================--><!-- These can be placed in the same document or grouped in a     separate document although this isn't yet widely supported --><!ELEMENT map ((%block; | form | %misc;)+ | area+)><!ATTLIST map  %i18n;  %events;  id          ID             #REQUIRED  class       CDATA          #IMPLIED  style       %StyleSheet;   #IMPLIED  title       %Text;         #IMPLIED  name        CDATA          #IMPLIED  ><!ELEMENT area EMPTY><!ATTLIST area  %attrs;  %focus;  shape       %Shape;        "rect"  coords      %Coords;       #IMPLIED  href        %URI;          #IMPLIED  nohref      (nohref)       #IMPLIED  alt         %Text;         #REQUIRED  target      %FrameTarget;  #IMPLIED  ><!--================ Forms ===============================================--><!ELEMENT form %form.content;>   <!-- forms shouldn't be nested --><!ATTLIST form  %attrs;  action      %URI;          #REQUIRED  method      (get|post)     "get"  name        NMTOKEN        #IMPLIED  enctype     %ContentType;  "application/x-www-form-urlencoded"  onsubmit    %Script;       #IMPLIED  onreset     %Script;       #IMPLIED  accept      %ContentTypes; #IMPLIED  accept-charset %Charsets;  #IMPLIED  target      %FrameTarget;  #IMPLIED  ><!--  Each label must not contain more than ONE field  Label elements shouldn't be nested.--><!ELEMENT label %Inline;><!ATTLIST label  %attrs;  for         IDREF          #IMPLIED  accesskey   %Character;    #IMPLIED  onfocus     %Script;       #IMPLIED  onblur      %Script;       #IMPLIED  ><!ENTITY % InputType  "(text | password | checkbox |    radio | submit | reset |    file | hidden | image | button)"   ><!-- the name attribute is required for all but submit & reset --><!ELEMENT input EMPTY>     <!-- form control --><!ATTLIST input  %attrs;  %focus;  type        %InputType;    "text"  name        CDATA          #IMPLIED  value       CDATA          #IMPLIED  checked     (checked)      #IMPLIED  disabled    (disabled)     #IMPLIED  readonly    (readonly)     #IMPLIED  size        CDATA          #IMPLIED  maxlength   %Number;       #IMPLIED  src         %URI;          #IMPLIED  alt         CDATA          #IMPLIED  usemap      %URI;          #IMPLIED  onselect    %Script;       #IMPLIED  onchange    %Script;       #IMPLIED  accept      %ContentTypes; #IMPLIED  align       %ImgAlign;     #IMPLIED  ><!ELEMENT select (optgroup|option)+>  <!-- option selector --><!ATTLIST select  %attrs;  name        CDATA          #IMPLIED  size        %Number;       #IMPLIED  multiple    (multiple)     #IMPLIED  disabled    (disabled)     #IMPLIED  tabindex    %Number;       #IMPLIED  onfocus     %Script;       #IMPLIED  onblur      %Script;       #IMPLIED  onchange    %Script;       #IMPLIED  ><!ELEMENT optgroup (option)+>   <!-- option group --><!ATTLIST optgroup  %attrs;  disabled    (disabled)     #IMPLIED  label       %Text;         #REQUIRED  ><!ELEMENT option (#PCDATA)>     <!-- selectable choice --><!ATTLIST option  %attrs;  selected    (selected)     #IMPLIED  disabled    (disabled)     #IMPLIED  label       %Text;         #IMPLIED  value       CDATA          #IMPLIED  ><!ELEMENT textarea (#PCDATA)>     <!-- multi-line text field --><!ATTLIST textarea  %attrs;  %focus;  name        CDATA          #IMPLIED  rows        %Number;       #REQUIRED  cols        %Number;       #REQUIRED  disabled    (disabled)     #IMPLIED  readonly    (readonly)     #IMPLIED  onselect    %Script;       #IMPLIED  onchange    %Script;       #IMPLIED  ><!--  The fieldset element is used to group form fields.  Only one legend element should occur in the content  and if present should only be preceded by whitespace.--><!ELEMENT fieldset (#PCDATA | legend | %block; | form | %inline; | %misc;)*><!ATTLIST fieldset  %attrs;  ><!ENTITY % LAlign "(top|bottom|left|right)"><!ELEMENT legend %Inline;>     <!-- fieldset label --><!ATTLIST legend  %attrs;  accesskey   %Character;    #IMPLIED  align       %LAlign;       #IMPLIED  ><!-- Content is %Flow; excluding a, form, form controls, iframe--> <!ELEMENT button %button.content;>  <!-- push button --><!ATTLIST button  %attrs;  %focus;  name        CDATA          #IMPLIED  value       CDATA          #IMPLIED  type        (button|submit|reset) "submit"  disabled    (disabled)     #IMPLIED  ><!-- single-line text input control (DEPRECATED) --><!ELEMENT isindex EMPTY><!ATTLIST isindex  %coreattrs;  %i18n;  prompt      %Text;         #IMPLIED  ><!--======================= Tables =======================================--><!-- Derived from IETF HTML table standard, see [RFC1942] --><!-- The border attribute sets the thickness of the frame around the table. The default units are screen pixels. The frame attribute specifies which parts of the frame around the table should be rendered. The values are not the same as CALS to avoid a name clash with the valign attribute.--><!ENTITY % TFrame "(void|above|below|hsides|lhs|rhs|vsides|box|border)"><!-- The rules attribute defines which rules to draw between cells: If rules is absent then assume:     "none" if border is absent or border="0" otherwise "all"--><!ENTITY % TRules "(none | groups | rows | cols | all)">  <!-- horizontal placement of table relative to document --><!ENTITY % TAlign "(left|center|right)"><!-- horizontal alignment attributes for cell contents  char        alignment char, e.g. char=':'  charoff     offset for alignment char--><!ENTITY % cellhalign  "align      (left|center|right|justify|char) #IMPLIED   char       %Character;    #IMPLIED   charoff    %Length;       #IMPLIED"  ><!-- vertical alignment attributes for cell contents --><!ENTITY % cellvalign  "valign     (top|middle|bottom|baseline) #IMPLIED"  ><!ELEMENT table     (caption?, (col*|colgroup*), thead?, tfoot?, (tbody+|tr+))><!ELEMENT caption  %Inline;><!ELEMENT thead    (tr)+><!ELEMENT tfoot    (tr)+><!ELEMENT tbody    (tr)+><!ELEMENT colgroup (col)*><!ELEMENT col      EMPTY><!ELEMENT tr       (th|td)+><!ELEMENT th       %Flow;><!ELEMENT td       %Flow;><!ATTLIST table  %attrs;  summary     %Text;         #IMPLIED  width       %Length;       #IMPLIED  border      %Pixels;       #IMPLIED  frame       %TFrame;       #IMPLIED  rules       %TRules;       #IMPLIED  cellspacing %Length;       #IMPLIED  cellpadding %Length;       #IMPLIED  align       %TAlign;       #IMPLIED  bgcolor     %Color;        #IMPLIED  ><!ENTITY % CAlign "(top|bottom|left|right)"><!ATTLIST caption  %attrs;  align       %CAlign;       #IMPLIED  ><!--colgroup groups a set of col elements. It allows you to groupseveral semantically related columns together.--><!ATTLIST colgroup  %attrs;  span        %Number;       "1"  width       %MultiLength;  #IMPLIED  %cellhalign;  %cellvalign;  ><!-- col elements define the alignment properties for cells in one or more columns. The width attribute specifies the width of the columns, e.g.     width=64        width in screen pixels     width=0.5*      relative width of 0.5 The span attribute causes the attributes of one col element to apply to more than one column.--><!ATTLIST col  %attrs;  span        %Number;       "1"  width       %MultiLength;  #IMPLIED  %cellhalign;  %cellvalign;  ><!--    Use thead to duplicate headers when breaking table    across page boundaries, or for static headers when    tbody sections are rendered in scrolling panel.    Use tfoot to duplicate footers when breaking table    across page boundaries, or for static footers when    tbody sections are rendered in scrolling panel.    Use multiple tbody sections when rules are needed    between groups of table rows.--><!ATTLIST thead  %attrs;  %cellhalign;  %cellvalign;  ><!ATTLIST tfoot  %attrs;  %cellhalign;  %cellvalign;  ><!ATTLIST tbody  %attrs;  %cellhalign;  %cellvalign;  ><!ATTLIST tr  %attrs;  %cellhalign;  %cellvalign;  bgcolor     %Color;        #IMPLIED  ><!-- Scope is simpler than headers attribute for common tables --><!ENTITY % Scope "(row|col|rowgroup|colgroup)"><!-- th is for headers, td for data and for cells acting as both --><!ATTLIST th  %attrs;  abbr        %Text;         #IMPLIED  axis        CDATA          #IMPLIED  headers     IDREFS         #IMPLIED  scope       %Scope;        #IMPLIED  rowspan     %Number;       "1"  colspan     %Number;       "1"  %cellhalign;  %cellvalign;  nowrap      (nowrap)       #IMPLIED  bgcolor     %Color;        #IMPLIED  width       %Length;       #IMPLIED  height      %Length;       #IMPLIED  ><!ATTLIST td  %attrs;  abbr        %Text;         #IMPLIED  axis        CDATA          #IMPLIED  headers     IDREFS         #IMPLIED  scope       %Scope;        #IMPLIED  rowspan     %Number;       "1"  colspan     %Number;       "1"  %cellhalign;  %cellvalign;  nowrap      (nowrap)       #IMPLIED  bgcolor     %Color;        #IMPLIED  width       %Length;       #IMPLIED  height      %Length;       #IMPLIED  >
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