CSS+JS实现兼容性很好的无限级上拉菜单
日期：2014-05-17 浏览次数：20690 次
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>CSS+JS实现兼容性很好的无限级下拉菜单</title>
<style type="text/css">
*{ margin:0; padding:0; border:0;}
body{font:12px/130% verdana,geneva,arial,helvetica,sans-serif,宋体;}li{list-style:none;}
.clearfix:after{content:" ";display:block;height:0;clear:both;visibility:hidden;}.clearfix{display:inline-block;}
a:link{ color:#000; text-decoration:none; }
a:visited{ color:#000; text-decoration:none; }
a:hover{ color:#000; text-decoration:none; }
.menu{ width:778px; height:26px; background:#fff; margin:0 auto;}
.menusel{ float:left;width:100px; position:relative; height:25px; background:#ddd; line-height: 25px; margin-left: 1px; *margin-left: 0px;_margin-left: -1px;}
.menusel h2{ font-size:12px; }
.menusel a{ display: block;text-align:center; width:100px;border:1px solid #a4a4a4; height:25px; border-bottom:1px solid #a4a4a4; position:relative; z-index:2;}
.menusel a:hover{ border:1px solid #a4a4a4; border-bottom:1px dashed #eeeeee; position:relative; z-index:2; height:25px;}
.ahover a{border-bottom:1px dashed #eeeeee; background:#eeeeee; }
.position{ position:absolute; z-index:1;}
.menusel ul{width:125px; background:#eee; border:1px solid #a4a4a4; margin-top: -1px; position:relative; z-index:1; display:none;}
.menusel .block{ display:block;}
.typeul li{border-bottom:1px dashed #a4a4a4;width:125px; position:relative; float:left; }
.typeul li a{ border:none;width:125px; }
.typeul li a:hover{ border:none; background:#ddd;}
.typeul{? margin-left:0;? }
.typeul ul{left:125px; top:0; position:absolute;}
.fli{ margin-left: -1px; border-left:#eeeeee solid 1px;}
.menusel .lli{ border:none; }
</style>
<script type="text/javascript">document.execCommand("BackgroundImageCache", false, true);</script><!-- IE6背景图片闪烁问题? -->
</head>
<body>
<div class="menu">
?<div id="menu1" class="menusel">
? <h2><a href="/">菜单1</a></h2>
?? <div class="position">
??? <ul class="clearfix typeul">
???? <li><a href="http://www.33567.cn">菜单选项1-2</a></li>
???? <li>
????? <a href="#">菜单选项1-2</a>
????? <ul>
?????? <li class="fli"><a href="#">菜单选项1-2-1</a></li>
?????? <li class="lli"><a href="#">菜单选项1-2-2</a></li>
????? </ul>
???? </li>
???? <li><a href="http://www.7caidy.com">菜单选项1-2</a></li>
???? <li class="lli"><a href="#">菜单选项1-2</a></li>
??? </ul>
?? </div><!-- position -->
? </div><!-- menusel -->
? <div id="menu2" class="menusel">
? <h2><a href="#">菜单2</a></h2>
? <div class="position">
? <ul class="clearfix typeul">
? <li><a href="#">菜单选项2-2</a></li>
? <li><a href="#">菜单选项2-2</a>
? <ul>
? <li class="fli"><a href="#">菜单选项2-2-1</a></li>
? <li class="lli"><a href="#">菜单选项2-2-2</a>
? <ul>
? <li class="fli"><a href="#">菜单选项2-2-1</a></li>
? <li class="lli"><a href="#">菜单选项2-2-2</a>
? </li>
? </ul>
? </li>
? </ul>
? </li>
? <li><a href
