body {
  font-family: Arial, sans-serif;
  padding: 20px;
  background-color: #f4f4f4;
}

.container {
  max-width: 300px;
  margin: 0 auto;
  background: white;
  padding: 30px;
  border-radius: 8px;
  text-align: center;
}

#counter {
  font-size: 48px;
  font-weight: bold;
  margin: 20px 0;
  color: #4CAF50;
}

button {
  padding: 10px 20px;
  margin: 5px;
  font-size: 16px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

#incrementBtn { background-color: #4CAF50; color: white; }
#decrementBtn { background-color: #f44336; color: white; }
#resetBtn { background-color: #2196F3; color: white; }