Understanding Accessibility

Guideline 3. Use markup and style sheets and do so properly.

This guideline’s purpose is to ensure that as much content as possible is provided without resorting to images. This ensures that screen readers can parse the document to the greatest extent.

There are 7 specific checkpoints in Guideline 3, all at priority 2.

Guideline 3 checkpoints, ordered from 1 to 7, with priority and how to check the checkpoint given and the disabilities accommodated by applying the checkpoint
No. Checkpoint Priority Disability Accommodated
3.1 When an appropriate markup language exists, use markup rather than images to convey information Priority 2 Blind
3.2 Create documents that validate to published formal grammars Priority 2 Blind
3.3 Use style sheets to control layout and presentation Priority 2

Blind

Partially Sighted

Colour Blind
3.4 Use relative rather than absolute units in markup language attribute values and style sheet property values Priority 2 Partially Sighted
Mobility Impaired
3.5 Use header elements to convey document structure and use them according to specification Priority 2 Blind
Cognitive
3.6 Mark up lists and list items properly Priority 2 Blind
3.7 Mark up quotations. Do not use quotation markup for formatting effects such as indentation Priority 2 Blind

guideline 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14