.loader{aspect-ratio:1;--g1:conic-gradient(from 90deg at top 3px left 3px,#0000 90deg,#fff 0);--g2:conic-gradient(from -90deg at bottom 3px right 3px,#0000 90deg,#fff 0);background:var(--g1),var(--g1),var(--g1),var(--g1), var(--g2),var(--g2),var(--g2),var(--g2);background-position:0 0,100% 0,100% 100%,0 100%;background-repeat:no-repeat;background-size:25px 25px;width:55px;animation:1.5s infinite l11}@keyframes l11{0%{background-size:35px 15px,15px 15px,15px 35px,35px 35px}25%{background-size:35px 35px,15px 35px,15px 15px,35px 15px}50%{background-size:15px 35px,35px 35px,35px 15px,15px 15px}75%{background-size:15px 15px,35px 15px,35px 35px,15px 35px}to{background-size:35px 15px,15px 15px,15px 35px,35px 35px}}