<style type="text/css">

body{ margin:0; padding:0; font-size:30px; color:#fff}

.top{height:100px;background:#ccc;}

.main{width:100%;height:600px;background:red;}

.left{width:200px;height:600px;background:blue;position:absolute;}

.right{height:600px;background:lightgreen;position:absolute;left:210px;right:0;}

.foot{height:50px;background: coral;}

</style>