未知布局？
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
html, body {
height: 100%;
}
.header {
height: 40px;
}
.main {
height: 400px;
background: #ccc;
position: relative;
}
.left {
width: 200px;
float: left;
height: 100%;
background: black;
margin-left: -100%;
}
.middle {
height: 100%;
width: 100%;
background: orange;
float: left;
padding: 0 200px;
box-sizing: border-box;
}
.right {
height: 100%;
width: 200px;
float: left;
background: blue;
margin-left: -200px;
}
.footer {
height: 60px;
}
</style>
</head>
<body>
<div class="header"></div>
<div class="main">
<div class="middle">sdfsdfsdfsdfsdfsfsdfsdf</div>
<div class="left"></div>
<div class="right"></div>
</div>
<div class="footer"></div>
</body>
</html>
圣杯布局
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
html, body {
height: 100%;
}
.header {
height: 40px;
}
.main {
height: 400px;
background: #ccc;
padding: 0 200px;
}
.left {
width: 200px;
float: left;
height: 100%;
background: black;
margin-left: -100%;
position: relative;
left: -200px;
}
.middle {
height: 100%;
width: 100%;
background: orange;
float: left;
}
.right {
height: 100%;
width: 200px;
float: left;
background: blue;
margin-left: -200px;
position: relative;
right: -200px;
}
.footer {
height: 60px;
}
</style>
</head>
<body>
<div class="header"></div>
<div class="main">
<div class="middle">sdfsdfsdfsdfsdfsfsdfsdf</div>
<div class="left"></div>
<div class="right"></div>
</div>
<div class="footer"></div>
</body>
</html>
双飞翼布局
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
html, body {
height: 100%;
}
.header {
height: 40px;
}
.main {
height: 400px;
background: #ccc;
}
.left {
width: 200px;
float: left;
height: 100%;
background: black;
margin-left: -100%;
}
.middle {
height: 100%;
width: 100%;
background: pink;
float: left;
}
.wrapper {
background: orange;
height: 100%;
padding: 0 200px;
}
.right {
height: 100%;
width: 200px;
float: left;
background: blue;
margin-left: -200px;
}
.footer {
height: 60px;
}
</style>
</head>
<body>
<div class="header"></div>
<div class="main">
<div class="middle">
<div class="wrapper">sssssssssssssssssssssss</div>
</div>
<div class="left"></div>
<div class="right"></div>
</div>
<div class="footer"></div>
</body>
</html>
原文：https://www.cnblogs.com/xuzishuai/p/9083762.html