CSS弹出二级菜单

<!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" />
<style type="text/css">
body
{
font-family
:Verdana;
font-size
:12px;
line-height
:1.5;
}

a
{
color
:#000;
text-decoration
:none;
}

a:hover
{
color
:#F00;
}
#menu
{
width
:100px;border:1px solid #ccc;
}
#menu ul
{
list-style
:none;
margin
:0px;
padding
:0px;
}
#menu ul li
{
background
:#eee;
padding
:0px 8px;
height
:26px;
line-height
:26px;
border-bottom
:1px solid #CCC;
position
:relative;
}
#menu ul li ul
{
display
:none;
position
:absolute;
left
:100px;
top
:0px;
width
:100px;
;border
:1px solid #ccc;
border-bottom
:none;
}
#menu ul li:hover ul
{
display
:block;
}
</style>
</head>
<body>
<div id="menu">
<ul>
<li><a href="@#">首页</a></li>
<li><a href="#">网页版式布局</a>
<ul>
<li><a href="#">自适应宽度</a></li>
<li><a href="#">固定宽度</a></li>
</ul>
</li>
<li><a href="#">div+css教程</a>
<ul>
<li><a href="#">新手入门</a></li>
<li><a href="#">视频教程</a></li>
<li><a href="#">常见问题</a></li>
</ul>
</li>
<li><a href="#">div+css实例</a></li>
<li><a href="#">常用代码</a></li>
<li><a href="#">站长杂谈</a></li>
<li><a href="#">技术文档</a></li>
<li><a href="#">资源下载</a></li>
<li><a href="#">图片素材</a></li>
</ul>
</div>
</body>
</html>

  

原文地址:https://www.cnblogs.com/dreamhome/p/2115603.html