@keyframes up-and-down{10%{height:30%}30%{height:100%}60%{height:50%}80%{height:75%}to{height:60%}}.playing__bar{display:inline-block;background:#fff;width:30%;height:100%;animation:up-and-down 1.3s ease infinite alternate;animation-play-state:running}.playing__bar1{height:60%}.playing__bar2{height:30%;animation-delay:-2.2s}.playing__bar3{height:75%;animation-delay:-3.7s}.playing__bar4{height:55%;animation-delay:-3s}.playing__bar5{height:10%;animation-delay:-4s}