.loader{width:60px;aspect-ratio:4;--_g:no-repeat radial-gradient(circle closest-side,#000 90%,#0000);background:var(--_g) 0 50%,var(--_g) 50% 50%,var(--_g) 100% 50%;background-size:calc(100% / 3) 100%;animation:l7 1s linear infinite}@keyframes l7{33%{background-size:calc(100% / 3) 0,calc(100% / 3) 100%,calc(100% / 3) 100%}50%{background-size:calc(100% / 3) 100%,calc(100% / 3) 0,calc(100% / 3) 100%}66%{background-size:calc(100% / 3) 100%,calc(100% / 3) 100%,calc(100% / 3) 0}}