横向CSS+DIV下拉菜单

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html>

<head>

*{margin:0;padding:0;}

.menu{font-size:12px;position:relative;z-index:100;}

.menu ul{list-style:none;}

.menu li {float:left;position:relative;/*left:135px;*/}

.menu ul ul {visibility:hidden;position:absolute;left:3px;top:25px;}

.menu table {position:absolute; top:0; left:0;}

.menu ul li:hover ul,

.menu ul a:hover ul{visibility:visible;}

.menu a{display:block;border:1px solid white;/*background:red;*/background:#757495;padding:2px 8px;margin:3px;color:white;text-decoration:none;width:110px;}

.menu a:hover{/*background:#f2cdb0;*/background:#757495;background-image:url(images/header_bg.gif);color:white;border:1px solid white;}

.menu ul ul{}

.menu ul ul li {clear:both;text-align:left;font-size:14px;}

.menu ul ul li a{display:block;width:110px;height:13px;margin:0;border:0;/*border-bottom:1px solid white;*/}

.menu ul ul li a:hover{border:0;/*background-image:url(images/header_bg.gif);*/background:#757495;border-bottom:1px solid white;}

</style>

</head>

<ul>

<li><a href="">XHTML/CSS</a>

<ul>

<li><a href="">布局教程专题</a></li>

<li><a href="">CSS菜单</a></li>

<li><a href="">滚动条相关</a></li>

<li><a href="">圆角矩形专题</a></li>

<li><a href="">CSS特效欣赏专题</a></li>

</ul>

</li>

<li><a href="">AJAX

</a> </li>

<ul>

<li><a href="">AJAX教程</a></li>

</ul>

</li>

<li><a href="">Javascript </a>

<ul>

</ul>

</li>

</a>

<ul>

<li><a href="">正则表达式简介</a></li>

<li><a href="">正则表达式之道</a></li>

</ul>

</li>

<li><a href="">建站技术

</a>

<ul>

<li><a href="">Flash</a></li>

<li><a href="">Dreamweaver</a></li>

</ul>

</li>

</ul>

</div>

</body>

</html>

来源：https://www.cnblogs.com/xiaojiangjiang/archive/2007/06/06/meun.html

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