A tab (role) is used to represent the tab item in a tab panel. Screen readers are expected to jump to a more comfortable mode than virtual mode to access the tab panels, for informing the screen reader user about this change, role application is used. The active tab is notified to the user using aria-selected=â€trueâ€. The element that has tab role is owned by tablist role and the same is notified using aria-owns attribute.
Authors SHOULD ensure the tabpanel associated with the currently active tab is perceivable to the user. The association can be made available to the user with ARIA-labelledby property or ARIA-controls property.