<!DOCTYPE>
<html>
<head>
<title></title>
<style type="text/css">
* { margin:0; padding:0; list-style:none;}
.div { width:300px; margin:0 auto; background:#000; overflow:auto;}
.div:after{ content:"."; display:block; height:0; clear:both; visibility:hidden;}
.con { margin-left:-30000px; left:30000px; position:relative; float:left;}
ul { width:100px; height:50px; background:#f60; float:left; margin-left:10px;}
</style>
</head>
<body>
<div class="div">
<div class="con">
<ul>
<li>1</li>
<li>2</li>
</ul>
<ul>
<li>1</li>
<li>2</li>
</ul>
<ul>
<li>1</li>
<li>2</li>
</ul>
</div>
</div>
</body>
</html>
