Expand/Collapse Widget Examples

An expand/collapse widget lets users toggle the visibility of additional information. It helps keep interfaces uncluttered while still providing access to supporting details when needed.

• Use a native button element so the control is keyboard accessible.
• Maintain aria-expanded to announce state changes to assistive tech.
• Reference the expandable section with aria-controls.

Consider this pattern when you need to share supplemental information that is not critical to the main task flow. It is especially useful for FAQs, definitions, or help content.

Avoid hiding essential content that users must access to complete primary tasks, as it may be overlooked.