.btnLoader{color:#f2f2f2;background-color:currentColor;border-radius:4px;width:8px;height:20px;margin:20px auto;animation:.3s linear .3s infinite alternate animloader;display:block;position:relative}.btnLoader:after,.btnLoader:before{content:"";background:currentColor;border-radius:4px;width:8px;height:30px;animation:.3s linear .45s infinite alternate animloader;position:absolute;top:50%;left:20px;transform:translateY(-50%)}.btnLoader:before{animation-delay:0s;left:-20px}@keyframes animloader{0%{height:30px}to{height:4px}}