/* ie 6 only styles */
#col-a {width:600px;float:left; margin: 20px 0 20px 20px ;}

.col-one {width:300px; margin: 20px 20px 20px 100px; float:left; border:1px solid #F00;}		
.col-two {width:300px; margin: 20px; float:left;border:1px solid #F00;}