.quiz_question { 
  font-size: larger;
  font-weight: bold;
}

.quiz_answer { 
  margin-top: 2ex;
  margin-bottom: 2ex;
}

.quiz_submit { 
  margin-top: 2ex;
  margin-bottom: 2ex;
}

.quiz_result { 
  font-size: larger;
  margin-bottom: 4ex;
}
.quiz_win { 
  font-size: x-large;
  font-weight: bold;
  margin-bottom: 4ex;
}