body{ margin:0; padding:0; font-size:30px; color:#fff}
.top{height:100px;background-color:red}
.main{height:600px;background-color: #0099FF;position:relative}
.left{width:200px;height:600px;background-color: #18ad2f;position:absolute;left:0;top:0}
.right{margin:0 210px;height:600px;background-color: #8eaace;}
.foot{height:50px;background-color: #ffff00}