.loader{aspect-ratio:1;--_m:conic-gradient(#0000 10%,#000), linear-gradient(#000 0 0) content-box;-webkit-mask:var(--_m);-webkit-mask:var(--_m);mask:var(--_m);-webkit-mask-composite:source-out;background:#fff;border-radius:50%;padding:4px;animation:.6s linear infinite l3;-webkit-mask-composite:source-out;mask-composite:subtract}@keyframes l3{to{transform:rotate(1turn)}}