This widget introduces the concept of an expand/collapse component. Click the button again to hide the additional information.

• Reduce visual clutter by hiding non-essential information.
• Allow users to focus on relevant content first.
• Provide progressive disclosure for advanced topics.

1. Use buttons with aria-expanded and aria-controls attributes for accessibility.
2. Toggle the hidden attribute on the controlled content.
3. Provide visual cues such as rotating indicators to show state changes.