字体和下划线间隔1象素
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<style>
a {text-decoration:none;color:#322c28;}
a:hover {color:#f56c0a;border-bottom:1px solid #f56c0a;display:inline-block;padding-bottom:1px;}
</style>
</HEAD>
<body>
<a href=#>abc早上好</a>
</body>
</HTML>