- Success Criterion 1.4.4
- Conformance level AA
Viewport Meta Tag That Disables Pinch-to-Zoom on Mobile
1.4.4 — Resize Text
Scenario
Setting
A recipe site's ingredient list
What’s wrong
maximum-scale=1 / user-scalable=no in viewport meta tag (page zoom settings) blocking pinch-zoom on mobile (no other resize path).
Example
Picture a recipe site's ingredient list: maximum-scale=1 / user-scalable=no in viewport meta tag (page zoom settings) blocking pinch-zoom on mobile (no other resize path).
Why it matters
Low-vision people who enlarge text instead of using a screen reader. In this case (a recipe site's ingredient list), they can't read the text against its background.
How to test
Check the viewport meta tag in page source: maximum-scale=1 or user-scalable=no blocks pinch-zoom on mobile with no other resize path — this fails.
How to fix
At 200% text size/zoom, all content and controls must remain visible, readable, and usable — nothing clipped, overlapped, or lost.
Outcome
Once corrected, a recipe site's ingredient list lets them tell the information apart without relying on color.
Who is affected
Low-vision people who enlarge text instead of using a screen reader.
Learn more
- Understanding Understanding document (opens in a new tab)
Related scenarios
- Text and Controls That Get Cut Off at 200% Zoom
- Form Fields That Don’t Grow When Text Is Enlarged
- Font Size Set in Viewport Units That Ignores Browser Zoom
- Fixed-Height Containers That Clip Content at 200% Zoom
- Button or Nav Text That Overflows Its Fixed-Size Container
- Sticky Header That Grows Large Enough to Cover Content