.slider{width:100%;height:100%;margin:0 auto}.slider .item{width:100%;height:100%;text-align:center;line-height:300px}.slider .item h2{position:absolute}.controller{text-align:center;width:90%;margin:0 auto}.controller span{font-size:50px;display:inline-block;color:#59ae15;cursor:pointer;margin-top:-250px}.prev{float:right}.next{float:left}