<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>…</title>
<style>
body {
margin: 0;
min-width: 600px;
}
header {
height: 80px;
background: #cff;
}
.wrapper {
float: left;
width: 100%;
margin-left: -200px;
background: #fcc;
}
.wrapper .inner-wrapper {
float: right;
width: 100%;
margin-left: -400px;
background: #fcf;
}
.wrapper article {
margin-left: 400px;
background: #fee;
}
.wrapper .sidebar-1 {
float: left;
width: 200px;
margin-left: 200px;
background: #cfc;
}
.sidebar-2 {
float: right;
width: 200px;
background: #ccf;
}
footer {
clear: both;
height: 80px;
background: #ffc;
}
</style>
</head>
<body>
<header>header</header>
<div class="wrapper">
<div class="inner-wrapper">
<article>content content content content content content content content content content content content content content content content content content content content content content content content content content content content</article>
</div>
<aside class="sidebar-1">sidebar 1</aside>
</div>
<aside class="sidebar-2">sidebar 2</aside>
<footer>footer</footer>
</body>
</html>