.loader{aspect-ratio:1;clip-path:polygon(0 0,100% 0,100% 100%,0 100%);border-radius:50%;width:40px;animation:2s cubic-bezier(.3,1,0,1) infinite l1}@keyframes l1{33%{clip-path:polygon(0 0,100% 0,100% 100%,0 100%);border-radius:0}66%{clip-path:polygon(50% 0,50% 0,100% 100%,0 100%);border-radius:0}}