.layout{margin-left:auto;margin-right:auto;display:flex;flex-direction:column;position:relative;z-index:1;background-size:cover;background-position:50%;background-repeat:no-repeat}.layout .content{flex:1;width:100%}.layout:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;display:flex;justify-content:center;align-items:center;z-index:-1}