.main-container{background-color:#fff}section{position:relative;display:inline-block;width:100%;background:#fff}#loading{position:fixed;height:100%;width:100%;background:#181818;top:1px;z-index:9999}#loading.hide{transition:all .8s ease;position:absolute;height:100px;opacity:0}#loading>div{position:relative;top:50%;transform:translateY(-50%)}