.loader{--c:no-repeat radial-gradient(farthest-side,#b01c14 93%,#b01c14);background:var(--c) 0 0, var(--c) 50% 0, var(--c) 100% 0;background-size:8px 8px;width:40px;height:20px;animation:1s linear infinite alternate l4-0;position:relative}.loader:before{content:"";background:#b01c14;width:8px;height:12px;animation:1s linear infinite alternate l4-1,.5s cubic-bezier(0,200,.8,200) infinite l4-2;position:absolute;top:0;left:0}@keyframes l4-0{0%{background-position:0 100%,50% 0,100% 0}8%,42%{background-position:0 0,50% 0,100% 0}50%{background-position:0 0,50% 100%,100% 0}58%,92%{background-position:0 0,50% 0,100% 0}to{background-position:0 0,50% 0,100% 100%}}@keyframes l4-1{to{left:calc(100% - 8px)}}@keyframes l4-2{to{top:-.1px}}