.banner{height: 280px;overflow: hidden;position: relative}.pic{height: 100%}.pic a{float: left;width: 390px;height: 280px}.pic a img{width: 100%;height: 100%}.banner span{position: absolute;top: 50%;margin-top: -50px;display: block;width: 50px;height: 100px;font-size: 50px;line-height: 100px;text-align: center;font-weight: 700;color: #fff;background-color: rgba(0, 0, 0, 0)}.prev{left: 0}.next{right: 0}.xia_title{position: absolute;bottom: 0;width: 390px;height: 60px;background-color: red;opacity: 0.3}.banner h6{position: absolute;bottom: 0;width: 390px;height: 60px;font-family: "微软雅黑";font-size: 24px;color: #fff;line-height: 60px;text-align: center}