Add CSS Class

Select the button with id="myButton" and add the CSS class "active" to it.

Platform-Provided HTML (READ-ONLY):
<div id="container">
  <button id="myButton">Click Me</button>
</div>

Steps:
1. Use document.getElementById() or document.querySelector() to select the button
2. Use classList.add() to add the "active" class

Expected Output:

<div id="container">
  <button id="myButton" class="active">Click Me</button>
</div>

Topics:

HTML DOM

Code Editor

Tab to indent · Ctrl+Enter to run · Ctrl+Space to expand shortcuts (clog, fn, fori)

Your Output

Run your code to see the output here...

Test Cases

Run your code to see test case results.