超强推荐CSS打造经典鼠标触发显示选项

<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> <style type="text/css"> </style> <div class="kw_from"> <form action="/search.html" method="get" name="searchform" id="searchform" onsubmit="return check()"> <ul id="searchnav"> <li id="conter1"> <h2>找什么</h2> <input id="jobkw" name="jobkw" type="text"><ul id="conter3"> <li> </li> <li> <li> <li> <li><span class="morecity"></span></li> </ul> </li> <li id="conter2"> <h2>在那里</h2> <input id="citykw" name="citykw" type="text"><ul id="conter4"> <li> </li> <li> <li> <li> <li> <li> <li> <li> <li> <li> <li> <li> <li><span class="morecity"></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> </form> </div>
[ctrl+a 全选 注:如需引入外部js需刷新才能执行]