.loader{display:flex;align-items:center}.bar{display:inline-block;width:3px;height:20px;background-color:rgba(0,0,0,.5);border-radius:10px;animation:scale-up4 1s linear infinite}.bar:nth-child(2){height:35px;margin:0 5px;animation-delay:.25s}.bar:nth-child(3){animation-delay:.5s}@keyframes scale-up4{20%{background-color:#ffff;transform:scaleY(1.5)}40%{transform:scaleY(1)}}