- Success Criterion 1.4.4
- Conformance level AA
Fixed Line Height Causing Enlarged Text to Overlap Itself
1.4.4 — Resize Text
Scenario
Setting
An online marketplace's seller dashboard
What’s wrong
Line-height fixed in px so enlarged glyphs overlap vertically.
Example
Try this on an online marketplace's seller dashboard: line-height fixed in px so enlarged glyphs overlap vertically.
Why it matters
Low-vision people who enlarge text instead of using a screen reader. On an online marketplace's seller dashboard specifically, they miss information conveyed only by color.
How to test
Set zoom to 200% and check multi-line text: if line-height is fixed in px, enlarged glyphs overlap the line above/below.
How to fix
At 200% text size/zoom, all content and controls must remain visible, readable, and usable — nothing clipped, overlapped, or lost.
Outcome
Fixed, a visitor to an online marketplace's seller dashboard can see the control's boundary and current state.
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
- Viewport Meta Tag That Disables Pinch-to-Zoom on Mobile
- Fixed-Height Containers That Clip Content at 200% Zoom
- Button or Nav Text That Overflows Its Fixed-Size Container