#cont {
  width:747px;
  margin:0 auto;
  border-width:2px;
  border-color:#0000;
  background:#9999;
}

#main {
  float:left;
  width:55.5%;
  margin: 0 -80% 1em 24.5%;
  background: #AFF65A;
  display:inline; 
}

#left {
  float:left;
  width:24%;
  margin:0 0 0 0;
  background: #AFF65A;
  display:inline;
}

#right {
  float:right;
  width:19.5%;
  margin:0em 0px 0 0;
  background:#DBFF8F;
  display:inline;  
}

#foot {
  clear:both;
  width:100%;
  color:green;
  font-size:small;
}