body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
  }
  #question{
    font-size: 2rem;
    font-weight: bold;
  }
  .card {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }
  
  .card-header {
    background-color: #007bff;
    color: #fff;
  }
  
  .card-footer {
    background-color: #f8f9fa;
  }
  
  .incorrect {
    color: #dc3545;
  }
  
  .incorrect-answer {
    color: #dc3545;
    font-size: 2rem;
    font-weight: bold;
  }