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<head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <style type="text/css"> .fengjingqu { position:relative; margin:0 auto; width: 100px; height: 50px; z-index: 1; background-color:#FF0; overflow:hidden; } .jieshao { position:relative; margin:0 auto; width: 100px; height: 50px; z-index: 2; background-color:#3F6; overflow:visible; } #apDiv2 { position:absolute; background-color:#F00; margin:0 auto; top:50px; width: 100px; height: 540px; } </style> </head> <body> <div id="apDiv1" class="fengjingqu" onmouseover="this.className=‘jieshao‘" onmouseout="this.className=‘fengjingqu‘">风景区 <div id="apDiv2"> <p>潭溪山</p> <p>云明山</p> <p>瀑布群</p> <p>蝴蝶谷</p> <p>杏花村</p> <p> </p> </div> </div> </body> </html>
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原文地址：http://www.cnblogs.com/275147378abc/p/4487159.html
