fall2025/test.html at main · wellesleyhack/fall2025 · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Loader Animation</title>
  <style>
    /* HTML: <div class="loader"></div> */
    .loader {
      width: 60px;
      aspect-ratio: 1;
      background:
        linear-gradient(90deg,#ffffff 50%,#2758e2 0) top/100% 50% no-repeat,
        linear-gradient(90deg,#3abef9 50%,#fb6222 0);
      -webkit-mask:linear-gradient(#000 0 0) 0 0/50% 50% no-repeat;
      mask: linear-gradient(#000 0 0) 0 0/50% 50% no-repeat;
      animation: l18 2s infinite;
    }
    @keyframes l18 {
      0%   {-webkit-mask-position:0    0   }
      25%  {-webkit-mask-position:100% 0   }
      50%  {-webkit-mask-position:100% 100%}
      75%  {-webkit-mask-position:0    100%}
      100% {-webkit-mask-position:0    0   }
    }
    body {
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      margin: 0;
      background: #222;
    }
  </style>
</head>
<body>
  <div class="loader"></div>
</body>
</html>