html{height:100%}body{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;color:#000;background:#E1F1F2;text-align:center;height:100%;min-height:400px}.container{position:relative;padding:20px}img{width:100%;max-width:100%;height:auto}.logo{margin:0 auto}