.loader{display:inline-block;border-top:4px solid #000;border-right:4px solid transparent;animation:rotation 1s linear infinite}.loader,.loader:after{width:48px;height:48px;border-radius:50%;box-sizing:border-box}.loader:after{content:"";position:absolute;left:0;top:0;border-left:4px solid #ff3d00;border-bottom:4px solid transparent;animation:rotation .5s linear infinite reverse}@keyframes rotation{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}