Expand/Collapse Widget Demo

Wrap each widget with a div that has an "example" class. The container holding the content to be shown/hidden uses the "details" class.

This is a simple expand/collapse widget. Click the header to reveal or hide the content. The content container uses the class "details".

Use ARIA attributes to convey state to assistive technologies.
Ensure keyboard operability for all interactions.
Provide clear, concise content for expanded sections.

Even though the content height varies, the widget smoothly reveals or hides it. This demo uses simple show/hide with accessible attributes.

Try expanding multiple sections to see how each widget operates independently.