.loader{width:100px;height:100px;border-radius:50%;border-left:4px solid transparent;border-top:4px solid transparent;border-color:#0af transparent transparent #0af;border-style:solid;border-width:4px;animation:spin 2s linear infinite,glow 1.5s ease-in-out infinite alternate;position:relative}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@keyframes glow{0%{box-shadow:0 0 10px rgba(0,170,255,.5)}to{box-shadow:0 0 30px #0af}}.loader:before{content:"";position:absolute;width:100%;height:100%;border-radius:50%;border:2px solid transparent;border-right-color:#0af;animation:spin 1s linear infinite reverse}