.music {
  position: absolute;
  right: 24px;
  top: 24px;
  display: inline-block;
  height: 0.5rem;
  width: 0.5rem;
  z-index: 10;
}

.music .icon-music {
  background: url(../music/audio_on.png) no-repeat;
  background-size: 100% 100%;
  width: 100%;
  height: 100%;
  display: block;
}

.musicPlay {
  -webkit-animation: spin 5s linear infinite;
  animation: spin 5s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
    transition: all 5s;
  }
}

.musicStop .icon-music {
  background-image: url(../music/audio_off.png);
}