.volume-anim .bar{opacity:0;animation-duration:.8s;animation-iteration-count:infinite;animation-timing-function:steps(1,end)}.volume-anim .bar-1{animation-name:bar1}@keyframes bar1{25%{opacity:1}}.volume-anim .bar-2{animation-name:bar2}@keyframes bar2{50%{opacity:1}}.volume-anim .bar-3{animation-name:bar3}@keyframes bar3{75%{opacity:1}}