<!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>CENTER SHOW</title>
<style>
body{margin:0px; text-align:center}
#container{margin-left:auto; margin-right:auto; width:980px; background:#ECECEC; text-align:left;}
</style>
</head>
<body>
<div id="container">
it is ok!
</div>
</body>
</html>
起作用的就是那个CSS代码了！很简单。margin-left:auto; margin-right:auto;
真是够简单！
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