.popup{position:fixed;background-color:#fff;border:1px solid #ccc;padding:20px;-webkit-animation:popupAnimation .3s ease;animation:popupAnimation .3s ease;transform-origin:top left}@-webkit-keyframes popupAnimation{0%{opacity:0;transform:translate(-50%,-50%) scale(0)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}@keyframes popupAnimation{0%{opacity:0;transform:translate(-50%,-50%) scale(0)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.content{margin-bottom:10px}button{margin-top:10px}