.loader{aspect-ratio:1;--_g:no-repeat radial-gradient(farthest-side,#000 94%,transparent);background:var(--_g)0 0,var(--_g)100% 0,var(--_g)100% 100%,var(--_g)0 100%;background-size:40% 40%;width:35px;animation:.5s infinite l38}@keyframes l38{to{background-position:100% 0,100% 100%,0 100%,0 0}}