body {font-family:Verdana;}
.container{width:1000px;}
.top
         {
          border:red 2px groove;
          background:#C8D8FB;
          height:auto; width:auto;margin:5px;
          
          }
.main
         {
          border:red 2px groove;
          background:#A8C1E5;
          height:auto; width:800px;float:left;
          text-align:center;margin:5px;
          }
    .left
         {
          border:red 2px groove;
          background:#C8D8FB;
          height:auto; width:160px;float:left;
          text-align:center;margin:5px;
          }
    .right
         {
          border:red 2px groove;
          background:#B5E2AB;
          height:auto; width:160px;float:left;
          text-align:center;margin:5px;
          }