<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Document</title>
<style type="text/css">
*{
margin: 0;padding: 0
}
#wrap{
width:100%;
margin:0 auto;
}
#header{
height:80px;
border:solid 1px #0000FF;
}
#container{
position:relative;
margin-top:20px;
height:400px;
}
#left_side{
position:absolute;
top:0px;
left:0px;
border:solid 1px #0000FF;
width:170px;
height:100%;
}
#content{
margin:0px 190px 0px 190px;
border:solid 1px #0000FF;
height:100%;
}
#right_side{
position:absolute;
top:0px;
right:0px;
border:solid 1px #0000FF;
width:170px;
height:100%;
}
#footer{
margin-top:20px;
height:80px;
border:solid 1px #0000FF;
}
</style>
</head>
<body>
<div id="wrap">
<div id="header">header</div>
<div id="container">
<div id="left_side">left_side</div>
<div id="content">content</div>
<div id="right_side">right-side</div>
</div>
<div id="footer">footer</div>
</div>
</body>
</html>
