本文实例讲述了纯CSS+XHTML实现的二级导航菜单效果。分享给大家供大家参考。具体如下：
这是一款简约、兼容好的XHTML+css二级导航菜单
运行效果截图如下：
在线演示地址如下：
http://demo.jb51.net/js/2015/css-xhtml-2l-menu-nav-demo-codes/
具体代码如下：
复制代码代码如下:
<!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=utf-8" />
<title>纯CSS+XHTML下拉菜单</title>
<style type="text/css">
<!--
* {
margin:0;
padding:0;
}
body {
font:12px Verdana, Geneva, sans-serif #333;
line-height:1.5;
}
ul li {
list-style:none;
}
.menu {
width:660px;
margin:20px auto;
}
.menu li {
display:inline;
float:left;
margin:0 5px;
background:#f2f2f2;
border:1px #39c solid;
text-align:center;
font-size:14px;
font-weight:700;
line-height:30px;
cursor:hand;
}
.tuckUp {
display:inline;
width:120px;
height:30px;
overflow:hidden;
background:#f2f2f2;
}
.pullDown{
display:inline;
height:auto;
}
.item a:link, .item a:visited {
display:inline;
float:left;
width:110px;
background:#ccc;
text-align:center;
color:#444;
font-size:12px;
font-weight:normal;
text-decoration:none;
line-height:25px;
margin:0 5px 5px 5px;
}
.item a:hover {
display:inline;
float:left;
background:#39c;
width:100px;
color:#FFF;
text-decoration:none;
text-align:center;
font-size:12px;
font-weight:700;
font-weight:normal;
line-height:25px;
padding:0 0 0 10px;
margin:0 5px 5px 5px;
}
//
-->
</style>
</head>
<body>
<ul class="menu">
<li class="tuckUp" onmousemove="this.className='pullDown'" onmouseout="this.className='tuckUp'">精品特效
<div class="item"><a href="#">网页特效</a></a>
<a href="#">层和布局</a></a>
<a href="#">表单按钮</a>
</div>
</li>
<li class="tuckUp" onmouseover="this.className='pUllDown'" onmouseout="this.className='tuckUp'">菜单导航
<div class="item"><a href="#">菜单导航</a>
<a href="#">CSS菜单</a>
<a href="#">JQUERY菜单</a>
</div>
</li>
<li class="tuckUp" onmouseover="this.className='pullDown'" onmouseout="this.className='tuckUp'">源代码
<div class="item" ><a href="#">源码下载</a>
<a href="#">ASP分类</a>
<a href="#">PHP分类</a>
<a href="#">ASP.NET</a>
</div>
</li>
<li class="tuckUp" onmouseover="this.className='pUllDown'" onmouseout="this.className='tuckUp'">更新汇总
<div class="item"><a href="#">最新更新</a>
<a href="#">最新更新</a>
<a href="#">网站首页</a>
</div>
</li>
<li class="tuckUp" onmouseover="this.className='pUllDown'" onmouseout="this.className='tuckUp'">脚本下载
<div class="item"><a href="#">脚本资源</a>
<a href="#">AJAX</a>
<a href="#">JQUERY</a>
<a href="#">EXTJS</a>
</div>
</li>
</ul>
</body>
</html>
希望本文所述对大家的CSS网页设计有所帮助。