1：方法一
<!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=gb2312" />
<title>三行单列 上下固定高度 中间自适应</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;
80%;
margin:0 auto;
position:relative;
}
#box > div {
display:table-row;
}
#header,
#footer {
background:#fcc;
height:50px;
}
#main {
background:#ccf;
}
#main #wrap {
display:table-cell;
background:#ffc;
vertical-align:middle;
}
#text {
text-align:center;
}
</style>
<!--[if IE]>
<style type="text/css">
#header,
#footer {
100%;
z-index:3;
position:absolute;
}
#footer {
bottom:0;
}
#main {
height:100%;
z-index:1;
position:relative;
}
#main #wrap {
position:absolute;
top:50%;
100%;
text-align:left;
}
#main #text {
position:relative;
100%;
top:-50%;
background:#ccc;
}
</style>
<![endif]-->
<body>
<div id="box">
<div id="header">header</div>
<div id="main">
<div id="wrap">
<div id="text">
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
<p>内容内容</p>
</div>
</div>
</div>
<div id="footer">footer</div>
</div>
</body>
</html>
方法二
<!DOCTYPE html>
<html>
<head>
<title>test</title>
<style type="text/css">
body,html{
margin:0;
padding: 0;
height: 100%;
}
</style>
</head>
<body >
<div style="min-height: 50%;background-color: #e3a037;">
test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br> test <br>
</div>
</body>
</html>