.container{width:1000px;padding:20px;position:relative}.left{overflow:hidden;float:left;width:auto}.right{float:right;width:auto}.left li,.right li{list-style:none;width:auto;height:30px}.titleContend{width:auto;height:30px;line-height:30px;border-bottom:1px solid #ccc}.titleContend .float{float:left}.titleContend .firstField{width:150px}