body {
      margin: 0;
      padding: 0;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      background-color: #f0f0f0;
      font-family: Arial, sans-serif;
      background-repeat: no-repeat;
      background-position: center center;
      background-size: cover;

    }
    #text-display {
      font-size: 10rem;
      font-weight: bold;
      text-align: center;
      color: #333;
      cursor: pointer;
    }
    #fullscreen-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #007bff;
      color: white;
      padding: 10px 20px;
      font-size: 1rem;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    }
    #fullscreen-button:hover {
      background-color: #0056b3;
    }