.set_image_all{cursor:pointer;position:relative}.set_image_all img{width:auto}.set_image_all .set_image_item{position:relative;display:inline-block;z-index:11;visibility:visible}.set_image_all .set_image_top{position:absolute;left:0;top:0;z-index:12}.set_image_all .set_image_top>div{display:inline-block;overflow:hidden}.set_image_all .set_image_top>div>img{height:100%}.grade{vertical-align:top}