.answer-button {
  transition: transform 0.2s;
}

.answer-button:hover {
  transform: scale(1.05);
}

.timer {
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}