Level AASince WCAG 2.1
1.3.4 Orientation
Guideline 1.3: Adaptable – Structure and meaning live in the code – not only in the looks.
What does the rule require?
Content works in portrait and landscape. Some people have their device fixed to a wheelchair and cannot rotate it.
How to get it right
Do not lock orientation via CSS or app settings. Exception: when it is truly essential, such as a piano app.
Who benefits most?
- People with motor disabilities
- People with low vision
Official wording
This page explains the rule in simple words. Only the original W3C text is normative.
- “Understanding Orientation” at W3C (external site)
- Techniques in the WCAG Quick Reference (external site)