<!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=gb2312" /> <script type=text/javascript><!--//--><![CDATA[//><!-- function menuFix() { var sfEls = document.getElementById("menu").getElementsByTagName("li"); for (var i=0; i<sfEls.length; i++) { sfEls[i].οnmοuseοver=function() { this.className+=(this.className.length>0? " ": "") + "sfhover"; } sfEls[i].onMouseDown=function() { this.className+=(this.className.length>0? " ": "") + "sfhover"; } sfEls[i].onMouseUp=function() { this.className+=(this.className.length>0? " ": "") + "sfhover"; } sfEls[i].οnmοuseοut=function() { this.className=this.className.replace(new RegExp("( ?|^)sfhover\\b"), ""); } } } window.οnlοad=menuFix; //--><!]]></script> <style type="text/css"> body { font-family: Verdana; font-size: 12px; line-height: 1.5; } a { color: #000; text-decoration: none; } a:hover { color: #F00; } #menu { width:500px; height:28px; margin:0 auto; border-bottom:3px solid #E10001;} #menu ul { list-style: none; margin: 0px; padding: 0px; } #menu ul li { float:left; margin-left:2px;} #menu ul li a { display:block; width:87px; height:28px; line-height:28px; text-align:center; background:url(images/2010-06/27/nav_bg2.gif) 0 0 no-repeat; font-size:14px;} #menu ul li a:hover { background:url(images/2010-06/27/nav_bg3.gif) 0 0 no-repeat;} #menu ul li a#current { background:url(images/2010-06/27/nav_bg1.gif) 0 0 no-repeat; font-weight:bold; color:#fff;} #menu ul li ul { border:1px solid #ccc; display:none; position:absolute;} #menu ul li ul li { float:none; width:87px; background:#eee; margin:0;} #menu ul li ul li a { background:none;} #menu ul li ul li a:hover { background:#333; color:#fff;} #menu ul li:hover ul { display:block;} #menu ul li.sfhover ul { display:block;} </style> </head> <body> <div id="menu"> <ul> <li><a id="current" href="#">首页</a></li> <li><a href="#">网页版式</a> <ul> <li><a href="#">自适应宽度</a></li> <li><a href="#">固定宽度</a></li> </ul> </li> <li><a href="#">web教程</a> <ul> <li><a href="#">新手入门</a></li> <li><a href="#">视频教程</a></li> <li><a href="#">常见问题</a></li> </ul> </li> <li><a href="#">web实例</a></li> <li><a href="#">常用代码</a></li> </ul> </div> </body> </html>