.card{width:20rem;height:25rem;margin:0 auto;margin-top:5rem;border:1px solid #a1a1a1;border-radius:25px;position:relative}.img{height:12rem;-o-object-fit:contain;object-fit:contain;margin:0 auto}.header{position:fixed;top:0;left:0;width:100%;height:50px;background-color:#000;color:#fff;text-align:center;line-height:50px}.err{margin:0 auto;width:90%;height:200px}.footer{position:fixed;bottom:0;left:0;width:100%;height:80px;background-color:#000;color:#fff;text-align:center;line-height:80px}