ol {
  font-weight: bold;
}

form {
  border: white solid 2px;
  border-radius: 2%;
  padding: 4px;
  font-weight: 500;
  margin-block: 20px;
}

form input {
  margin-right: 10px;
  margin-left: 10px;
}

h3 {
  margin-top: 40px;;
}

h4 {
  display: none; /* hide answers */
  margin-top: 5px;
  background-color: white;
  color: darkgreen;
  border: green solid 2px;
  padding: 2px;
  font-weight: 600;
}

.btn-container {
  text-align: center;
  margin-top: 20px;
}

.show-btn {
  padding: 10px 20px;
  background: #4a90e2;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: 0.2s;
}

.show-btn:hover {
  background: #357ab8;
}