body{background:#eceff1;padding:0}.brand-logo img{width:100%;max-height:150px;max-width:500px}.card-panel{max-width:500px;margin-left:auto;margin-right:auto}#card .btn{display:block;margin-left:auto;margin-right:auto}#card{position:relative}#card-preloader{position:absolute;top:0;left:0;margin-top:0;margin-bottom:0}