<!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"?/>
<title>tabel切換</title>
<style?type="text/css">
*{margin:0;padding:0;}
body{font-size:9pt;}
ul,li{list-style:none;}
a{text-decoration:none;}
.tab_box{width:500px;height:200px;margin:20px?auto;border:1px?solid?#CCC;}
.tab_box_tit{background-color:#F7F7F7;text-align:center;height:50px;position:relative;}
.tab_box_tit?ul{position:absolute;left:-1px;width:502px;}
.tab_box_tit?ul?li{height:50px;line-height:50px;float:left;width:98px;padding:0?1px;border-bottom:1px?solid?#CCC;}
.tab_box_tit?ul?li?a{color:#000;}
.tab_box_tit?ul?li?a:hover{color:#f18e32;}
.tab_box_tit?li.select{background-color:#FFF;border-bottom:none;font-weight:bold;border-left:1px?solid?#CCC;border-right:1px?solid?#CCC;padding:0;}
</style>
</head>
<body>
<div?class="tab_box"?id="tab_box">
????<div?class="tab_box_tit"?id="tab_box_tit">
????????<ul>
????????????<li><a?href="#">公告</a></li>
????????????<li><a?href="#">規(guī)則</a></li>
????????????<li><a?href="#">論壇</a></li>
????????????<li><a?href="#">安全</a></li>
????????????<li?class="select"><a?href="#">公益</a></li>
????????</ul>
????</div>
????<div?class="tab_box_con"></div>
</div>
</body>
</html>老師，我這個(gè)右邊一直有空白是什么情況？ul寬度設(shè)多少都沒作用，調(diào)試了半天，好糾結(jié)
