在网站的底部添加海浪背景

聪明小米

效果展示：

HTML部分
建立一个div，id为wavesDIV，之后使用svg绘/制一个图形出来，此时这个图形还是不会懂的，我们需要使用animation来让他动起来

• <div id="wavesDIV" style="display: block;">
  <svg class="waves" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 24 150 28" preserveAspectRatio="none" shape-rendering="auto">
  <defs>
  <path id="gentle-wave" d="M-160 44c30 0 58-18 88-18s 58 18 88 18 58-18 88-18 58 18 88 18 v44h-352z"></path>
  </defs>
  <g class="parallax">
  <use xlink:href="#gentle-wave" x="48" y="-2" fill="rgba(125,165,191,0.3)"></use>
  <use xlink:href="#gentle-wave" x="48" y="3" fill="rgba(125,165,191,0.5)"></use>
  <use xlink:href="#gentle-wave" x="48" y="5" fill="rgba(125,165,191,0.7)"></use>
  <use xlink:href="#gentle-wave" x="48" y="12" fill="rgba(125,165,191,1)"></use>
  </g>
  </svg>
  </div>
  

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CSS部分
使用@keyframes设定动画，使用animation调用

• #wavesDIV{
  position: fixed;
  bottom: 0;
  width: 100%;
  display:block;
  height:20vh;
  background-color:rgb(125,165,191);
  animation: move-out 2s cubic-bezier(0,.98,.97,1) forwards;
  }
  .waves {
  position:relative;
  width: 100%;
  height:15vh;
  margin-top:-15vh;
  min-height:100px;
  max-height:150px;
  }
  .parallax > use {
  animation: move-forever 25s cubic-bezier(.55, .5, .45, .5) infinite;
  }
  .parallax > use:nth-child(1) {
  animation-delay: -2s;
  animation-duration: 7s;
  }
  .parallax > use:nth-child(2) {
  animation-delay: -3s;
  animation-duration: 10s;
  }
  .parallax > use:nth-child(3) {
  animation-delay: -4s;
  animation-duration: 13s;
  }
  .parallax > use:nth-child(4) {
  animation-delay: -5s;
  animation-duration: 20s;
  }
  @keyframes move-forever {
  0% {
  transform: translate3d(-90px, 0, 0);
  }
  100% { transform: translate3d(85px, 0, 0);
  }
  }
  @keyframes move-out {
  0% {
  transform: translateY(400%);
  }
  100% { transform: translateY(0%);
  }
  }
  home.php?mod=space&uid=945662 (max-width: 768px) {
  .waves {
  height:40px; min-height:40px;
  }
  }
  

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当然如果在中间加多点，譬如说10%,20%,30%,40%,50%,60%，动态会更强烈
演示站点：https://stext.cn/

超级小爱

这画风一下就想起以前了