<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
html,
body {
height: 100%;
}
.wrap {
display: -webkit-box;
display: -webkit-flex;
display: -ms-flexbox;
display: flex;
-webkit-box-orient: vertical;
-webkit-flex-direction: column;
-ms-flex-direction: column;
flex-direction: column;
width: 100%;
height: 100%;
}
.header,
.footer {
height: 40px;
line-height: 40px;
background-color: #D8D8D8;
text-align: center;
}
.main {
-webkit-box-flex: 1;
-webkit-flex: 1;
-ms-flex: 1;
flex: 1;
width: 100%;
}
</style>
</head>
<body>
<div class="wrap">
<div class="header">header</div>
<div class="main">
弹性滚动区域
</div>
<div class="footer">footer</div>
</div>
</body>
</html>
原文：http://www.cnblogs.com/chenmeng1314/p/7700913.html