.button {
  background-color: blue;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
  border-radius: 12px;
  transition-duration: 0.4s;
}	

.button1 {
  background-color: white; 
  color: black; 
  border: 2px solid #4CAF50;
}

.button1:hover {
  background-color: #4CAF50;
  color: white;
}

.button2 {
  background-color: white; 
  color: black; 
  border: 2px solid #008CBA;
}

.button2:hover {
  background-color: #008CBA;
  color: white;
}

.button3 {
	background-color: white;
	color: white;
	border: 2px solid white;
}

.correct {
	color: green;
}
.incorrect {
	color: red;
}