An expand/collapse widget lets you hide or reveal additional content. Using the native details and summary elements gives you accessibility and keyboard support out of the box.
This content is inside the container with class details, and it becomes visible when the summary is activated.
This widget is open initially thanks to the open attribute on details.
Click the summary again to collapse it.
This is the parent section. It contains a nested disclosure for more granular control.
Nested content lives here. Each details acts independently and has the required details class.