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：
<!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">
<>
</style>
</head>
<body>
<ul>
<li onmousemove="this.className='pullDown'" onmouseout="this.className='tuckUp'">精品特效
<div><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 onmouseover="this.className='pUllDown'" onmouseout="this.className='tuckUp'">菜单导航
<div><a href="#">菜单导航</a>
<a href="#">CSS菜单</a>
<a href="#">JQUERY菜单</a>
</div>
</li>
<li onmouseover="this.className='pullDown'" onmouseout="this.className='tuckUp'">源代码
<div ><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 onmouseover="this.className='pUllDown'" onmouseout="this.className='tuckUp'">更新汇总
<div><a href="#">最新更新</a>
<a href="#">最新更新</a>
<a href="#">网站首页</a>
</div>
</li>
<li onmouseover="this.className='pUllDown'" onmouseout="this.className='tuckUp'">脚本下载
<div><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。