An overlay that requires user interaction before returning to the main UI. Must trap focus, label the dialog, and provide accessible dismissal.
A disclosure pattern made of headers that expand or collapse content. Must be keyboard operable with correct ARIA roles and states.
A rotating banner of content. Often problematic for accessibility: ensure keyboard control, visible focus, pause/stop, and proper semantics.
A pattern to show or hide additional content, typically via a button that toggles aria-expanded and controls a region.
Input widget combining text field with popup list. Requires complex ARIA states and keyboard navigation patterns.
ARIA role for interactive tabular data where cells are focusable and may be editable, requiring 2D navigation.
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