网页上中下三分布局即上下固定中间自适应_Div+CSS教程_CSS

点评：网页上中下三分布局打破了传统的布局方式，实现所谓的上下固定，中间自适应，大家可以参考学习下

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代码如下:

<!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="pragram" content="no-cache">

<meta http-equiv="cache-control" content="no-cache, must-revalidate">


<meta http-equiv="expires" content="0">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<style type="text/css">
* {
margin:0;
padding:0;
}
html,
body,
#box {
height:100%;
font:small/1.5 "宋体", serif;
}
body {
text-align:center;
}
#box {
text-align:left;
background:#666;
display:table;
width:80%;
margin:0 auto;
position:relative;
}
#box > div {
display:table-row;
}
#header,
#footer {
background:#fcc;
height:50px;
vertical-align:bottom;
}
#main {
background:#ccf;
}
#main #wrap {
display:table-cell;
background:#ffc;
vertical-align:middle;
}
#text {
text-align:center;
}
</style>

</head>
<body>
<div id="box">
<div id="header">header</div>
<div id="main">
<div id="wrap">
<div id="text">
<p>测试文本</p>
</div>
</div>
</div>
<div id="footer">footer</div>
</div>
</body>
</html>

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