body {
      font-family: Arial, sans-serif;
      background-color: #517bbb;
      padding: 20px;
    }
    h1 {
      text-align: center;
      color: #0c0404;
    }
    .pregunta {
      background: #104181;
      padding: 15px;
      margin: 10px 0;
      border-radius: 10px;
      box-shadow: 0 0 5px rgba(0,0,0,0.1);
    }
    .incorrecta {
      border-left: 30px solid red;
      
    }
    .correcta {
      border-left: 30px solid green;
    }
    

  .boton {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 100px;
    background: #fff;
    color: #333;
    font-size: 20px;
    font-weight: bold;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.boton:hover {
    background: #3d723d;
    color: #ffffff;
    transform: scale(1.1);
    box-shadow: 0 0 15px #11ff00;
}