body {
  font-family: -apple-system, Arial, sans-serif;
  color: #333;
  padding: 20px;
}

button {
  background-color: #4a90e2;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background-color: #357ae8;
}