CSS分栏问题
css如下：
.main {width: 966px; margin: 40px auto;}
.main_picture {}
.now {}
.home_passage {position: relative; background-color: #FFFFFF;}
.3_1 {width: 321px; border-right: 1px solid #3c3c3c; background-color:#FFFFFF; float: left;}
.3_2 {width: 321px; border-right: 1px solid #3c3c3c; background-color:#FFFFFF; float: left;}
.3_3 {width: 322px; background-color:#FFFFFF; float: left;}
.space {clear: both;}
.footer {position: relative;}
html如下
<body>
<div class="main">
<div>jksdjflsdjflkdsjl</div>
</div>
<div class="main_picture">
lksdjflkjsldfjlasdjfljsadf
</div>
<div class="now">
lksadjfljs
</div>
<div>
klsdjflasjdf
</div>
<div class="home_passage">
<div class="3_1">
jkldsjflsdjflsd
</div>
<div class="3_2">
sdfsdlfkjsdkjf
</div>
<div class="3_3">jsldfjldsjflsdf
</div>
</div>
<div class="space">
</div>
<div class="footer">
jlsdfjlsdjflsd
</div>
</body>
显示时总是不分栏，怎么回事？
[解决办法]
起名字最好起一些稳妥一点的
<style>.main {width: 966px; margin: 40px auto;}.main_picture {}.now {}.home_passage {position: relative; background-color: #FFFFFF;}.h3_1 {width: 321px; border-right: 1px solid #3c3c3c; background-color:#FFFFFF; float: left;}.h3_2 {width: 321px; border-right: 1px solid #3c3c3c; background-color:#FFFFFF; float: left;}.h3_3 {width: 322px; background-color:#FFFFFF; float: left;}.space {clear: both;}.footer {position: relative;}</style><body><div class="main"> <div>jksdjflsdjflkdsjl</div> </div> <div class="main_picture"> lksdjflkjsldfjlasdjfljsadf </div> <div class="now"> lksadjfljs </div> <div> klsdjflasjdf </div> <div class="home_passage"> <div class="h3_1"> jkldsjflsdjflsd </div> <div class="h3_2"> sdfsdlfkjsdkjf </div> <div class="h3_3">jsldfjldsjflsdf </div> </div> <div class="space"> </div> <div class="footer"> jlsdfjlsdjflsd </div></body>