.bg{background:url(../img/banner3.0a63363b.jpg);background-size:100% 100%!important;position:fixed}.bg,.bg-mask{height:100%;width:100%}.bg-mask{background:rgba(0,0,0,.5)}.content{border-radius:4px;background:#fff;padding:10px;width:25%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);position:absolute;top:40%;left:50%}.logo-img{width:100%;text-align:center;margin-bottom:30px;margin-top:20px}