.ph-audio-horn {
  width: 0.93333rem;
  height: 0.74667rem;
  display: inline-block;
  background-size: contain;
  background-image: url('https://cdn.llscdn.com/sprout/assets/20190116/icSound3@2x.png');
  background-repeat: no-repeat;
}
.ph-audio-horn.is-pad {
  width: 0.3418rem;
  height: 0.27344rem;
}
.ph-audio-horn .audio-el {
  display: none;
}
.ph-audio-horn.on-play {
  -webkit-animation: 1s audio-horn-animation infinite;
          animation: 1s audio-horn-animation infinite;
}
@-webkit-keyframes audio-horn-animation {
  0% {
    background-image: url('https://cdn.llscdn.com/sprout/assets/20190116/icSound1@2x.png');
  }
  50% {
    background-image: url('https://cdn.llscdn.com/sprout/assets/20190116/icSound2@2x.png');
  }
  100% {
    background-image: url('https://cdn.llscdn.com/sprout/assets/20190116/icSound3@2x.png');
  }
}
@keyframes audio-horn-animation {
  0% {
    background-image: url('https://cdn.llscdn.com/sprout/assets/20190116/icSound1@2x.png');
  }
  50% {
    background-image: url('https://cdn.llscdn.com/sprout/assets/20190116/icSound2@2x.png');
  }
  100% {
    background-image: url('https://cdn.llscdn.com/sprout/assets/20190116/icSound3@2x.png');
  }
}