.clearfix:after, .row:after {content:"."; display:block; height:0; clear:both; visibility:hidden;}.clearfix, .row {display:inline-block;} .clearfix, .row {display:block;}.row {position:relative; margin-left:-20px;}.gu1 .row {width: 480px;}.gu2 .row {width: 960px;}.col {padding-left:20px; float:left; position:relative;}.gu1{width: 460px;}.gu2{width: 940px;}