.cascade-slider_container{position:relative;width:1000px;height:500px;margin:0 auto}.cascade-slider_item{position:absolute;top:50%;left:50%;transform:translateY(-65%) translateX(-50%) scale(.5);transition:all 1s ease;opacity:0}.cascade-slider_item.next{left:50%;transform:translateY(-50%) translateX(-160%) scale(.6);opacity:.7;z-index:1}.cascade-slider_item.prev{left:50%;transform:translateY(-50%) translateX(60%) scale(.6);opacity:.7;z-index:1}.cascade-slider_item.prev2{z-index:1;opacity:.7}.cascade-slider_item.prev3{z-index:3;opacity:1}.cascade-slider_item.now{top:50%;left:50%;transform:translateY(-50%) translateX(-50%) scale(1);opacity:1;z-index:5}.cascade-slider_arrow{display:inline-block;position:absolute;top:70%;cursor:pointer;z-index:5}.cascade-slider_arrow-left{left:26%}.cascade-slider_arrow-right{right:26%}.cascade-slider_nav{position:absolute;bottom:-120px;width:100%;text-align:center;z-index:5}