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<!-- 要实现此效果需要 1 个步骤：把相关css和div构架标签复制到你网页代码里即可. --><
!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<style type="text/css">
<!--
#navlist
{
border-bottom: 1px solid #ccc;
margin: 0;
padding-bottom: 19px;
padding-left: 10px;
}
#navlist ul, #navlist li
{
display: inline;
list-style-type: none;
margin: 0;
padding: 0;
}
#navlist a:link, #navlist a:visited
{
background: #E8EBF0;
border: 1px solid #ccc;
color: #666;
float: left;
font-size: small;
font-weight: normal;
line-height: 14px;
margin-right: 8px;
padding: 2px 10px 2px 10px;
text-decoration: none;
}
#navlist a:link#current, #navlist a:visited#current
{
background: #fff;
border-bottom: 1px solid #fff;
color: #000;
}
#navlist a:hover { color: #f00; }
body.section-1 #navlist li#nav-1 a,
body.section-2 #navlist li#nav-2 a,
body.section-3 #navlist li#nav-3 a,
body.section-4 #navlist li#nav-4 a
{
background: #fff;
border-bottom: 1px solid #fff;
color: #000;
}
#navlist #subnav-1,
#navlist #subnav-2,
#navlist #subnav-3,
#navlist #subnav-4
{
display: none;
width: 90%;
}
body.section-1 #navlist ul#subnav-1,
body.section-2 #navlist ul#subnav-2,
body.section-3 #navlist ul#subnav-3,
body.section-4 #navlist ul#subnav-4
{
display: inline;
left: 10px;
position: absolute;
top: 95px;
}
body.section-1 #navlist ul#subnav-1 a,
body.section-2 #navlist ul#subnav-2 a,
body.section-3 #navlist ul#subnav-3 a,
body.section-4 #navlist ul#subnav-4 a
{
background: #fff;
border: none;
border-left: 1px solid #ccc;
color: #999;
font-size: smaller;
font-weight: bold;
line-height: 10px;
margin-right: 4px;
padding: 2px 10px 2px 10px;
text-decoration: none;
}
#navlist ul a:hover { color: #f00 !important; }
#contents
{
background: #fff;
border: 1px solid #ccc;
border-top: none;
clear: both;
margin: 0px;
padding: 15px;
}
-->
</style>
</head>
<body>
<div id="navcontainer">
<ul id="navlist">
<li id="active"><a href="#" id="current">Item one</a></li>
<li><a href="#">Item two</a></li>
<li><a href="#">Item three</a></li>
<li><a href="#">Item four</a></li>
<li><a href="#">Item five</a></li>
</ul>
</div>
</body>
</html>
