.paper-opening .crack-frame{background:#fff;inset:0;top:0;left:0;width:100%;height:100%}.crack-frame>span{position:absolute;left:0;top:12.5%;width:100%;height:75%;background-image:url(/assets/homepage-20260916/sky-crack-stages.webp);background-size:300% 100%;background-repeat:no-repeat}.crack-frame>span:nth-child(1){background-position:0 0}.crack-frame>span:nth-child(2){background-position:50% 0}.crack-frame>span:nth-child(3){background-position:100% 0}