@keyframes loadingBar{0%,to{transform:scaleY(.4);opacity:.5}50%{transform:scaleY(1);opacity:1}}.loading-bar{animation:loadingBar 1.2s ease-in-out infinite}.loading-bar:first-child{animation-delay:0s}.loading-bar:nth-child(2){animation-delay:.15s}.loading-bar:nth-child(3){animation-delay:.3s}