武林網(www.survivalescaperooms.com)文章簡介：div上下兩欄，上下自動居中。
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>div上下兩欄，上下自動居中</title>
<style type="text/css">
html,body{overflow:hidden;height:100%;margin:0;padding:0}
html{_padding-top:100px}
#header{position:absolute;top:0;left:0;width:100%;height:100px;background:blue}
#content{position:absolute;top:100px;right:0;bottom:0;left:0;overflow:auto;width:100%;_height:100%;background:green}
#center{width:200px;height:100px;background:red;position:absolute;left:50%;top:50%;margin-left:-100px;margin-top:-50px}
</style>
</head>
<body>
<div id="header"></div>
<div id="content">
<div id="center"></div>
</div>
</body>
</html>
新聞熱點
疑難解答
