.kartu{place-content:center;place-items:center;overflow:hidden;border-radius:20px}.kartu:before{content:"";position:absolute;width:100px;background-image:linear-gradient(180deg,rgb(0,183,255),rgb(255,48,255));height:150%;animation:rotBGimg 3s linear infinite;transition:all .2s linear}@keyframes rotBGimg{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.kartu:after{content:"";position:absolute;background:#07182E;inset:5px;border-radius:15px}