- Success Criterion 1.4.10
- Conformance level AA
Carousel Slide Content Cut Off With No Way to Reach It
1.4.10 — Reflow
Scenario
Setting
A university's online course catalog
What’s wrong
Carousels whose slide content is cut with no alternative path to it.
Example
.layout { width: 1200px; } Why it matters
Low-vision users at high zoom and people reading on narrow mobile viewports.
How to test
Set the viewport to 320px and check carousel/slider content: if slide content is cut off with no alternative way to reach the full content, it fails.
How to fix
At 320 CSS px width (400% zoom on a 1280px desktop), content must reflow into one column with only vertical scrolling and nothing missing or unreachable. .layout { max-width: 1200px; width: 100%; } Content must reflow into one column at 320px wide with no horizontal scrolling and nothing missing.
Outcome
On a university's online course catalog, this barrier is gone for low-vision users at high zoom and people reading on narrow mobile viewports — they can finish what they came here to do.
Who is affected
Low-vision users at high zoom and people reading on narrow mobile viewports.
Learn more
- Understanding Understanding document (opens in a new tab)
Related scenarios
- Content or Controls That Vanish Entirely When the Page Reflows
- Vertical Content That Forces Horizontal Scrolling at 320px
- Fixed-Width Container Forcing Scrolling in Two Directions
- Overlapping Content When the Page Is Zoomed to 400%
- Sticky Bars That Eat Up Most of a 320px Mobile Screen
- Desktop Breakpoint That Never Switches to Mobile Layout