Expand / Collapse Widget Examples

This is a simple expand/collapse region. It is hidden initially and becomes visible when you toggle the button above. The content is wrapped with the class details as requested.

Tip: The button uses aria-expanded and aria-controls to link it with the content for screen readers.

Unlike the first example, this panel is initially expanded. The button above reflects that via aria-expanded="true", and there is no hidden attribute on this container.

You can still toggle it closed and reopen it. Buttons are keyboard-accessible by default (Enter/Space).

Below is a short list showing how multiple elements can live inside the controlled container:

• Point one: explanation and details.
• Point two: additional context or actions.
• Point three: final notes.

This details container could hold virtually any content: images, forms, or nested widgets.