css打造经典鼠标触发显示选项,CSS、DIV

运行代码框
<!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" />
<meta http-equiv="Content-Language" content="zh-CN" />
<title>css打造鼠标触发效果</title>
<meta content="all" name="robots" />
<meta name="author" content="yyt_by@163.com,huanghai<img align=absmiddle src=/image/url.gif border=0><a target=_blank href=http://www.hppd.cn>www.hppd.cn</a>友情制作" />
<meta name="copyright" content="hppd" />
<meta name="descrīption" content="hppd,prettydog,honeypig,web设计,交互设计,prettydog" />
<meta name="keywords" content="f2blog,phpblog,blog,php,xhtml,css,design,w3c,w3,w3cn,hppd,prettydog,honeypig,web设计,交互设计,prettydog" />

<style type="text/css">
<!--
body {
 margin: 0;
 padding: 0;
 color: #000;
 font-size: 12px;
 line-height: 160%;
 text-align: left;
 height: 100%;
 font-family: '宋体',Tahoma ,arial,verdana,sans-serif,'Lucida Grande','Lucida Sans Unicode';
}
*{ margin:0; padding:0;}
h2,h2 a:link,h2 a:hover,h2 a:visited{
 font-size: 14px;
 text-decoration: none;
 color: #000000;
    }
.kw_from {
 padding:20px 0 0 0px;
 margin: auto;
 height: 300px;
 overflow: hidden;
 width: 650px;
   }
.kw_from .sbtn{
 float:left;
 width:80px;
 padding: 16px 0 0 0;
}
.kw_from .searchMore{
 float:left;
 width:80px;
 padding: 4px;
}
#searchNav {
 width:430px;
 float: left;
}
#searchNav #conter1, #searchNav #conter3{
 float:left;
 width:250px;
}
#searchNav #conter2, #searchNav #conter4{
 float:left;
 width:180px;
}
#searchNav ul {
 padding: 0;
 margin: 0;
 list-style: none;
}
#searchNav li {
 float: left; 
}
#searchNav li ul {
 display: none; 
 top: 20px; 
}
#searchNav li:hover ul, #searchNav li.over ul {
 display: block;
 float:left;
}
#searchNav ul li a{
 float:left;
 display:block;
 font-size:12px;
 padding:3px;
 text-decoration: none;
 color: #777;
}
#searchNav ul li a:hover{
 background-color:#f4f4f4;
}
#searchNav #jobKw{
 width:220px;
 height:18px;
}
#searchNav #cityKw{
 width:130px;
 height:18px;
}
-->
</style>
<scrīpt type="text/javascrīpt">
<!--//--><![CDATA[//>
<!--
startList = function() {
 if (document.all&&document.getElementById) {
  navRoot = document.getElementById("searchNav");
  for (i=0; i<navRoot.childNodes.length; i++) {
   node = navRoot.childNodes[i];
   if (node.nodeName=="LI") {
    node.onmouseover=function() {
     this.className+=" over";
    }
    node.onmouseout=function() {
     this.className=this.className.replace(" over", "");
    }
   }
  }
 }
}
window.onload=startList;

//--><!]]>
</scrīpt>

</head>

<body>
<div class="kw_from">
  <form action="/search.html" method="get" name="searchForm" id="searchForm" ōnsubmit="return check()">
    
        <ul id="searchNav">
        <li id="conter1"><h2>找什么</h2>
     <input id="jobKw" name="jobKw" type="text"  />
           <ul id="conter3">
           <li><a href="#">会计</a> </li>
           <li><a href="#">网页设计</a></li>
           <li><a href="#">翻译</a></li>
           <li><a href="#">家教</a></li>     
           <li><span class="moreCity"><a href="#">更多&gt;&gt; </a></span></li>
        </ul>
     </li>

       <li id="conter2"><h2>在那里</h2>
        <input id="cityKw" name="cityKw" type="text"  />
           <ul id="conter4">
           <li><a href="#">北京</a> </li>
           <li><a href="#">上海</a></li>
           <li><a href="#">广州</a></li>
           <li><a href="#">深圳</a></li>
           <li><a href="#">南京</a></li>
           <li><a href="#">天津</a></li>
           <li><a href="#">杭州</a></li>
           <li><a href="#">成都</a></li>
           <li><a href="#">重庆</a></li>
           <li><a href="#">武汉</a></li>
           <li><a href="#">西安</a></li>
           <li><a href="#">沈阳</a></li>
           <li><span class="moreCity"><a href="#">更多城市&gt;&gt;</a></span></li>
           </ul>
      </li>
      </ul>
   <div class="sbtn">
   <input name="submit" type="submit" class="btn4" style="margin:0px 15px 2px 0;" value="搜索工作" />
   </div>
   <div class="searchMore">
        <a href="search_expert.html">高级搜索</a><br /><a href="search_sort.html">分类搜索</a>      </div>
  </form>
</div>
</body>
</html>
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