body {
      background-color: #111;
      margin: 0;
      height: 100vh;
      overflow: hidden;
      font-family: sans-serif;
      color: white;
    }
    .slider-container {
      position: fixed;
      bottom: 120px;
      width: 100%;
      text-align: center;
      z-index: 10001;
    }
    .slider-label {
      margin-right: 10px;
    }
    input[type="range"] {
      width: 200px;
    }
    #saveButton {
      position: fixed;
      bottom: 60px;
      left: 50%;
      transform: translateX(-50%);
      padding: 8px 16px;
      font-weight: bold;
      z-index: 10002;
      cursor: pointer;
    }