.third-circle{width:100%;height:100%;background:rgba(0,0,0,0);clip-path:polygon(50% 50%,100% 0,100% 100%);border-radius:50%;position:relative;border:2px solid #fff;animation:loading 2s infinite}.third-circle.dark{border:2px solid #464646}@keyframes loading{0%{transform:rotate(0deg)}33%{transform:rotate(120deg)}66%{transform:rotate(240deg)}to{transform:rotate(1turn)}}