日期:2014-05-17 浏览次数:20894 次
<style>
#warp {
position: absolute;
width:500px;
height:200px;
left:50%;
top:50%;
margin-left:-250px;
margin-top:-100px;
border: solid 3px red;
}
</style>
------解决方案--------------------
<!DOCTYPE HTML>
<html lang="">
<head>
<meta charset="gbk">
<title></title>
<style type="text/css">
body {padding: 0; margin: 0;}
body,html{height: 100%;}
#outer {height: 100%; overflow: hidden; position: relative;width: 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%;width: 400px;margin: 0 auto;} /* for explorer only */
div.greenBorder {border: 1px solid green; background-color: ivory;}
</style>
</head>
<body>
<div id="outer">
<div id="middle">
<div id="inner" class="greenBorder">
</div>
</div>
</div>
</body>
</html>
------解决方案--------------------