关键的CSS设置：
float:left;
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>配置</title>
<style>
.wlsc-menu-active{
float:left;
}
</style>
</head>
<body>
<div >
<ul><li class="wlsc-menu-active" title="配置- 选项卡 - 所选"><div><span class="tab"><span>配置</span></span></div></li><li class="" title="控制- 选项卡"><a href="http://172.16.0.211:7001/console/console.portal?_nfpb=true&_pageLabel=WLSServerControlTablePage&handle=com.bea.console.handles.JMXHandle%28%22com.bea%3AName%3Dcluster_domain%2CType%3DDomain%22%29" title="控制- 选项卡"><span class="tab"><span>控制</span></span></a></li></ul>
</div>
</body>
</html>
原文：http://blog.csdn.net/hongweigg/article/details/18456049