WAI-ARIA 1.2

1. Introduction and usage

   Purpose of ARIA and the accessibility tree.

2. Roles

   Role categories, abstract roles and role characteristics.

3. Widget roles

   button, checkbox, combobox, tab, dialog and similar roles.

4. Document structure roles

   article, heading, list, table and other structural roles.

5. Landmark roles

   banner, main, navigation, search and complementary.

6. Live region roles

   alert, status and log.

7. States and properties

   Global states, widget attributes and relationship attributes.

8. Naming from author

   aria-label, aria-labelledby and accessible name computation.

9. Live region attributes

   aria-live, aria-atomic and aria-relevant.

10. Relationship attributes

    aria-controls, aria-describedby, aria-owns.

11. ARIA Authoring Practices Guide

    Keyboard interaction and markup patterns for widgets.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.