background-color: #f2f2f2;
  border: 1px solid #ccc;
  padding: 10px;
  max-width: 300px;
  margin: 0 auto;
}

input[type="text"], button {
  font-size: 20px;
  margin: 5px;
  padding: 5px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

button {
  background-color: #4CAF50;
  color: white;
}

button:hover {
  background-color: #3e7e3;
  cursor: pointer;
}

Testing and Debugging

Once we’ve completed the JavaScript code and CSS styles, it’s time to test our calculator. We can input various numbers and operations and check if the result is correct. If we encounter any errors, we can use the browser’s console to debug the code and fix the errors.

FAQs