.loader{width:48px;height:48px;background:#353535;display:block;margin:20px auto;position:relative;box-sizing:border-box;animation:rotationBack 1s ease-in-out infinite reverse}.loader:before{content:"";box-sizing:border-box;left:0;top:0;transform:rotate(45deg);position:absolute;width:48px;height:48px;background:#2e2e2e;box-shadow:0 0 5px #00000026}.loader:after{content:"";box-sizing:border-box;width:32px;height:32px;border-radius:50%;position:absolute;left:50%;top:50%;background:#000;transform:translate(-50%,-50%);box-shadow:0 0 5px #00000026}@keyframes rotationBack{0%{transform:rotate(0)}to{transform:rotate(-360deg)}}