.box,body,html{width:100vw;height:100vh}.box{background-image:url(../img/haibao.fd5526a8.jpg);background-repeat:no-repeat;background-size:cover;-webkit-background-size:cover;-o-background-size:cover;background-position:center 0}img{width:100%;height:100%}.loading{position:fixed;left:50%;top:50%;-webkit-transform:translate3d(-50%,.26667rem,.26667rem);transform:translate3d(-50%,.26667rem,.26667rem)}