纯CSS实现动态波浪效果

纯CSS实现动态波浪效果，所需的三张图片在文末，效果如图，波浪是会动的：

<div class="waveWrapper waveAnimation">
    <div class="waveWrapperInner bgTop">
      <div class="wave waveTop" style="background-image: url('assets/img/wave-top.png')"></div>
    </div>
    <div class="waveWrapperInner bgMiddle">
      <div class="wave waveMiddle" style="background-image: url('assets/img/wave-mid.png')"></div>
    </div>
    <div class="waveWrapperInner bgBottom">
      <div class="wave waveBottom" style="background-image: url('assets/img/wave-bot.png')"></div>
    </div>
</div>
<style>
@keyframes move_wave {
      
      
    0% {
      
      
        transform: translateX(0) translateZ(0) scaleY(1)
    }
    50% {
      
      
        transform: translateX(-25%) translateZ(0) scaleY(0.55)
    }
    100% {
      
      
        transform: translateX(-50%) translateZ(0) scaleY(1)
    }
}
.waveWrapper {
      
      
    overflow: hidden;
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    height: 50px;
}
.waveWrapperInner {
      
      
    position: absolute;
    width: 100%;
    overflow: hidden;
    height: 100%;
    bottom: -1px;
    /*background-image: linear-gradient(to top, #86377b 20%, #27273c 80%);*/
}
.bgTop {
      
      
    z-index: 15;
    opacity: 0.5;
}
.bgMiddle {
      
      
    z-index: 10;
    opacity: 0.75;
}
.bgBottom {
      
      
    z-index: 5;
}
.wave {
      
      
    position: absolute;
    left: 0;
    width: 200%;
    height: 100%;
    background-repeat: repeat no-repeat;
    background-position: 0 bottom;
    transform-origin: center bottom;
}
.waveTop {
      
      
    background-size: 50% 30px;
}
.waveAnimation .waveTop {
      
      
  animation: move-wave 3s;
   -webkit-animation: move-wave 3s;
   -webkit-animation-delay: 1s;
   animation-delay: 1s;
}
.waveMiddle {
      
      
    background-size: 50% 40px;
}
.waveAnimation .waveMiddle {
      
      
    animation: move_wave 10s linear infinite;
}
.waveBottom {
      
      
    background-size: 50% 30px;
}
.waveAnimation .waveBottom {
      
      
    animation: move_wave 15s linear infinite;
}
</style>