#slider{width: 500px;height: 300px}.guding{width: 500px;height: 300px}.controls li{top: 87%;margin-top: -30px}.controls li .prve,.controls li .next,.controls li:hover .prve,.controls li:hover .next{width: 41px;height: 34px}.controls li .prve{background: url(../images/zuozuozuo.png) no-repeat}.controls li .next{background: url(../images/youyouyou.png) no-repeat}.controls li:hover .prve{background: url(../images/zuo_hover.png) no-repeat}.controls li:hover .next{background: url(../images/you_hover.png) no-repeat}.controls li:nth-child(1){left: 405px}.controls li:nth-child(2){right: 8px}.pagination li{background-color: #ddd}.pagination li.active{background-color: #000}.clearfix:after{content: "";display: table;clear: both}