.correct, .correct:active, .correct:focus, .correct:hover {
  background: #dff0d8;
  border-color: #3c763d;
  color: #3c763d;;
}

.incorrect, .incorrect:active, .incorrect:focus, .incorrect:hover {
  background-color: #f2dede;
  border-color: #a94442;
  color: #a94442;
}

.feedback-icon {
  margin-left: 10px;
}

.hint3 {
  margin-top: 20px;
}