body{font-family:arial;font-size:13px;color:black;}
.clear{clear:both}
#wrapper{width:90%;height:600px;border:3px solid gray;border-radius:10px}
#header{width:100%;height:50px;background:cyan;}
#content{width:100%;height:500px;background:white}
#left{width:5%;height:500px;background:purple;float:left}
#center{width:85%;height:500px;background:yellow;float:left}
#right{width:5%;height:500px;background:purple;float:right}
#footer{width:100%;height:50px;background:cyan}