Web accessibility
Six units on building pages that work for people who use screen readers, keyboards, zoom or high contrast. Each unit follows the WCAG 2.2 success criteria it covers, and each has live HTML exercises that check your code, flashcards and 9 or 10 practice questions with explanations.
Progress
- 1Alternative text for images
- 2Heading structure and landmarks
- 3Colour contrast
- 4Using a page with the keyboard
- 5Form labels
- 6Screen readers and the first rule of ARIA
Sources for this course (7)
- W3C, Web Content Accessibility Guidelines (WCAG) 2.2, W3C Recommendation first published 5 October 2023, current edition 12 December 2024 (w3.org/TR/WCAG22/, checked 2026-10-17, rechecked 2026-10-18)
- W3C WAI, What's new in WCAG 2.2 (w3.org/WAI/standards-guidelines/wcag/new-in-22/, checked 2026-10-17)
- W3C WAI, Images tutorial and alt decision tree (w3.org/WAI/tutorials/images/decision-tree/, checked 2026-10-17)
- W3C, Using ARIA (w3.org/TR/using-aria/, Discontinued Draft 24 February 2026, rules 1 to 4, checked 2026-10-17)
- W3C WAI-ARIA Authoring Practices Guide, Read Me First, "No ARIA is better than bad ARIA" (w3.org/WAI/ARIA/apg/practices/read-me-first/, checked 2026-10-17)
- MDN Web Docs, tabindex (developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes/tabindex, checked 2026-10-17)
- MDN, Heading elements, accessibility notes (developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/Heading_Elements, checked 2026-10-17)
Checked: 2026-10-17