body {
      font-family: Arial, sans-serif;
      background-color: #836045;
      padding: 20px;
    }
    h1 {
      text-align: center;
      color: #0c0404;
    }
    .pregunta {
      background: rgba(241, 241, 241, 0.904);
      padding: 15px;
      margin: 10px 0;
      border-radius: 10px;
      box-shadow: 0 0 5px rgba(0,0,0,0.1);
    }
    .incorrecta {
      border-left: 5px solid red;
    }
    .correcta {
      border-left: 5px solid green;
    }
    button {
      display: block;
      margin: 20px auto;
      padding: 10px 20px;
      background-color: #7d481a;
      color: rgb(0, 0, 0);
      border: none;
      border-radius: 8px;
      cursor: pointer;
      font-size: 16px;
    }
    button:hover {
      background-color: rgb(183, 110, 62);
    }
    #resultado {
      text-align: center;
      font-weight: bold;
      margin-top: 20px;
      font-size: 18px;
    }