div.daily-checkin-border{display:block;position:absolute;left:50%;top:50%;transform:translateX(-50%) translateY(-50%);background-image:linear-gradient(#00ffcc,#3333ff);animation:rotate-border 1s linear infinite}@keyframes rotate-border{0%{transform:translateX(-50%) translateY(-50%) rotate(0deg)}to{transform:translateX(-50%) translateY(-50%) rotate(1turn)}}