#app{position:relative;height:100%;margin:0 auto;color:#fff;background-image:-webkit-gradient(linear,left bottom,left top,from(#101014),to(rgba(0,0,0,.5))),url(../../static/img/back.11dd1194.png);background-image:linear-gradient(0deg,#101014,rgba(0,0,0,.5)),url(../../static/img/back.11dd1194.png);background-repeat:no-repeat;background-size:cover;background-position:50%}