<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>www.52css.com</title>
<style type="text/css">
<!--
#nav {
width:200px;
height:200px;
position:relative;
top:50px;
left:50px;
background:#ccc;
}
#woaicss {
width:200px;
height:200px;
background:#c00;
}
-->
</style>
</head>
<body>
<div id="nav"></div>
<div id="woaicss"></div>
</body>
</html>
