body {
  font-family: Arial, sans-serif;
  background-color: #f5f5f5;
  text-align: center;
  margin: 0;
  padding: 2rem;
}

.counter {
  margin-top: 1rem;
}

button {
  margin: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 1rem;
}