<!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>无标题文档</title>
<style type="text/css">
.menuDiv > ul > li > ul {
position: absolute;
display: none;
}
.menuDiv > ul > li:hover ul {
display: block;
}
</style>
</head>
<body>
<div class="menuDiv">
<ul>
<li>
<a href="#">这是一级菜单</a>
<ul>
<li><a href="#">这是二级菜单0</a></li>
<li><a href="#">这是二级菜单1</a></li>
</ul>
</li>
</ul>
</div>
</body>
</html>
