ThreeCardPocker-backend/wave.html at main · coderjcy/ThreeCardPocker-backend · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      .wave {
        --wave-height: 50%;
        position: relative;
        align-items: center;
        height: 300px;
        width: 300px;
        background-color: rgb(118, 218, 255);
        overflow: hidden;
        border-radius: 50%;
        box-shadow: inset 0px -10px 50px #000;
        &:before,
        &:after {
          content: "";
          position: absolute;
          left: 50%;
          min-width: 300%;
          min-height: 300%;
          background-color: #fff;
          animation: rotate 10s linear infinite;
        }

        &:before {
          bottom: var(--wave-height);
          border-radius: 45%;
        }
        &:after {
          bottom: calc(var(--wave-height) - 3%);
          opacity: 0.5;
          border-radius: 49%;
        }
      }
      @keyframes rotate {
        0% {
          transform: translate(-50%, 0) rotateZ(0deg);
        }
        50% {
          transform: translate(-50%, -2%) rotateZ(180deg);
        }
        100% {
          transform: translate(-50%, 0%) rotateZ(360deg);
        }
      }
    </style>
  </head>
  <body>
    <div class="wave"></div>
  </body>
</html>