Expand / Collapse Widget Demo

These guidelines help your team communicate effectively and stay aligned throughout the project lifecycle.

Clarify decisions and outcomes in every milestone.
Provide feedback respectfully and promptly.
Keep documentation up to date for onboarding and review.

Answer: This expand/collapse widget uses a simple CSS transition on max-height to reveal content. The button updates its ARIA state for accessibility.

Click the button to toggle visibility.
Use Tab to focus the control and Enter/Space to activate.
Content is wrapped in a container marked with the details class for controlled visibility.