.button-loader{width:6px;height:20px;border-radius:4px;display:block;background-color:currentColor;margin:20px auto;position:relative;animation:animloader .3s linear .3s infinite alternate}.button-loader:after,.button-loader:before{content:"";width:6px;height:20px;border-radius:4px;background:currentColor;position:absolute;top:50%;transform:translateY(-50%);left:10px;animation:animloader .3s linear .45s infinite alternate}.button-loader:before{left:-10px;animation-delay:0s}@keyframes animloader{0%{height:28px}to{height:4px}}