CSS+JS黑色横向三级导航条_菜单导航特效

CSS+JavaScript横向玄色导航条，看上往很酷，三级折叠、展开。使用LI列表。符合W3C WEB标准，复制到你的网页中就可用了，很舒服的导航菜单。

<!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" mrc="text/html; charset=gb2312" />
<title>玄色多级弹出菜单 - Javascript经典专区</title>
<style>
body {
margin: 7px;
font:12px Verdana, Arial, Helvetica, sans-serif;
}
* {
list-style-type: none;
margin: 0px;
padding: 0px;
border: thin none;
}
#nav {
position: absolute;
font-size: 11px;
opacity: 0.8;
}
#nav a {
display: block;
width: 100px;
height: 15px;
padding: 3px 5px 12px;
background: #666;
color: #fff;
text-decoration: none;
}
#nav a:hover {
background: #333;
}
#nav li {
float: left;
clear: left;
width: 120px;
background: #ccc;
padding-bottom: 3px;
}
#nav ul {
position: absolute;
margin-left: 115px;
margin-top: -30px;
}
#nav ul {
display: none;
}
#nav li.show ul {
display: block;
}
#nav li.show li ul {
display: none;
}
#nav li li.show ul {
display: block;
}
</style>
<script language="javascript" type="text/javascript">
function menuFix() {
var sfEls = document.getElementById("nav").getElementsByTagName("li");
for (var i=0; i<sfEls.length; i++) {
sfEls[i].onmouseover=function() {
this.className+=(this.className.length>0? " ": "") + "show";
}
sfEls[i].onmouseout=function() {
this.className=this.className.replace(new RegExp("( ?|^)show\\b"), "");
}
}
}
window.onload=menuFix;
</script>
</head>
<body>
<ul id="nav">
<li><a href="#">mb5u.com</a>
<ul>
<li><a href="#">Lasted Update</a>
<ul>
<li><a href="#">Class</a></li>
<li><a href="#">New Update</a></li>
</ul>
</li>
<li><a href="#">ASP</a>
<ul>
<li><a href="/sort/list_1_11_1.shtml">聊天留言</a></li><li><a href="/sort/list_1_12_1.shtml">企业建站</a></li><li><a href="/sort/list_1_13_1.shtml">论坛社区</a></li><li><a href="/sort/list_1_14_1.shtml">新闻文章</a></li><li><a href="/sort/list_1_145_1.shtml">博客日记</a></li><li><a href="/sort/list_1_29_1.shtml">CMS系统</a></li><li><a href="/sort/list_1_20_1.shtml">学校政府</a></li><li><a href="/sort/list_1_28_1.shtml">影音视频</a></li><li>
</ul>
</li>
<li><a href="/">PHP</a>
<ul>
<li><a href="/sort/list_1_11_1.shtml">聊天留言</a></li><li><a href="http://mb5u.com/sort/list_1_12_1.shtml">企业建站</a></li><li><a href="http://mb5u.com/sort/list_1_13_1.shtml">论坛社区</a></li><li><a href="/sort/list_1_14_1.shtml">新闻文章</a></li><li><a href="http://mb5u.com/sort/list_1_145_1.shtml">博客日记</a></li><li><a href="http://mb5u.com/sort/list_1_29_1.shtml">CMS系统</a></li><li><a href="http://mb5u.com/sort/list_1_20_1.shtml">学校政府</a></li><li><a href="http://mb5u.com/sort/list_1_28_1.shtml">影音视频</a></li><li>
</ul>
</li>
<li><a href="#">Delphi</a>
<ul>
<li><a href="http://mb5u.com/sort/list_5_80_1.shtml">游戏娱乐</a></li><li><a href="/sort/list_5_82_1.shtml">媒体网络</a></li><li><a href="/sort/list_5_99_1.shtml">窗体界面</a></li><li><a href="http://mb5u.com/sort/list_5_102_1.shtml">算法相关</a></li><li><a href="/sort/list_5_93_1.shtml">系统相关</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#">VC++</a>
<ul>
<li><a href="/sort/list_5_80_1.shtml">游戏娱乐</a></li><li><a href="/sort/list_5_82_1.shtml">媒体网络</a></li><li><a href="/sort/list_5_99_1.shtml">窗体界面</a></li><li><a href="/sort/list_5_102_1.shtml">算法相关</a></li><li><a href="/sort/list_5_93_1.shtml">系统相关</a></li>
</ul>
</li>
<li><a href="/sort/list_5_1.shtml">Java</a>
<ul>
<li><a href="/sort/list_5_80_1.shtml">游戏娱乐</a></li><li><a href="/sort/list_5_82_1.shtml">媒体网络</a></li><li><a href="/sort/list_5_99_1.shtml">窗体界面</a></li><li><a href="/sort/list_5_102_1.shtml">算法相关</a></li><li><a href="/sort/list_5_93_1.shtml">系统相关</a></li>
</ul>
</li>
</ul></body>
</html>

所属频道：菜单导航特效/更新时间：2010-05-22

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