This is the expanded content. It contains additional information that is hidden by default.
You can include any HTML content here, including paragraphs, lists, images, and more.
Answer: An expand/collapse widget is an interactive UI component that allows users to show or hide content on demand. This helps keep interfaces clean and organized while making additional information available when needed.
Key features of this widget:
Accessibility is crucial for web applications. This widget implements several accessibility best practices:
The button includes aria-expanded to indicate its state, and aria-controls to associate it with the content it controls. The content region has a role="region" to identify it as a landmark.
Keyboard users can activate the button using Enter or Space keys, and screen readers will announce the state changes appropriately.