.bgm{right:3%;top:3%;position:fixed;z-index:300}.Sound{width:40px;height:25px;display:flex;align-items:center;justify-content:space-around;cursor:pointer}.Sound:hover span{background-color:#fff}.Sound span{display:block;width:2px;margin-right:1px;background-color:#ffc156;animation:sound 0ms -.8s linear infinite alternate;transition:height .8s,background .3s}.Sound span:nth-child(1){height:1px;animation-duration:474ms}.Sound span:nth-child(2){height:3px;animation-duration:433ms}.Sound span:nth-child(3){height:5px;animation-duration:407ms}.Sound span:nth-child(4){height:7px;animation-duration:458ms}.Sound span:nth-child(5){height:8px;animation-duration:.4s}.Sound.off span{animation:none}.Sound.off span:nth-child(1){height:8px;animation-duration:474ms}.Sound.off span:nth-child(2){height:3px;animation-duration:433ms}.Sound.off span:nth-child(3){height:5px;animation-duration:407ms}.Sound.off span:nth-child(4){height:4px;animation-duration:458ms}.Sound.off span:nth-child(5){height:8px;animation-duration:.4s}@keyframes sound{0%{opacity:.35;height:6px}100%{opacity:1;height:23px}}