Creating tabs

To create a tab, use a menu element with role="tablist". Then for the tab titles, use a button with role="tab", and set the aria-controls attribute to the corresponding id of the element with role="tabpanel".

Read more at MDN Web docs - ARIA: tab role

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This tab contains a GroupBox

Disabling tabs

Simply add a disabled attribute on the tab.

Justified tabs

Add the justified class to the tablist menu to make the tabs, well, justified.

Disabled Tab

This tab is disabled, so you should not be able to read this.