<!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 content="text/html; charset=utf-8" http-equiv="Content-Type" /> <title>无标题 1</title>
<style type="text/css">
body {padding: 0; margin: 0;}
body, html {height: 100%;}
#outer {height: 100%; overflow: hidden; position: relative; 100%; background:ivory;}
#outer[id] {display: table; position: static;}
#middle {position: absolute; top: 50%;} /* for explorer only*/
#middle[id] {display: table-cell; vertical-align: middle; position: static;}
#inner {position: relative; top: -50%; 400px;margin: 0 auto;} /* for explorer only */
div.greenBorder {border: 1px solid green; background-color: ivory;}
*+html #outer[id] {position: relative;} /* for IE7 */
*+html #middle[id] {position: absolute;} /* for IE7 */
</style>
</head> <body>
<div id="outer">
<div id="middle">
<div id="inner" class="greenBorder">
</div>
</div>
</div>
</body> </html>
