- Success Criterion 2.5.8
- Conformance level AA
Slider Thumb Target Smaller Than the Required Minimum Size
2.5.8 — Target Size (Minimum)
Scenario
Setting
A nonprofit's donation form
What’s wrong
Sliders' thumb targets under 24px with nothing equivalent elsewhere.
Example
Here's what happens on a nonprofit's donation form: sliders' thumb targets under 24px with nothing equivalent elsewhere.
Why it matters
People with tremor or larger touch contact areas, and anyone tapping on a moving vehicle. Here, on a nonprofit's donation form, the result is they can't complete the task using a keyboard alone.
How to test
Measure a slider's draggable thumb: if it's under 24px with no equally-sized equivalent control elsewhere, it fails.
How to fix
The target must be at least 24x24 CSS px, or have enough spacing that a 24px circle around its center overlaps no other target, or a compliant equivalent control must exist.
Outcome
After the fix, the same visitor to a nonprofit's donation form can now keep track of where they are on the page.
Who is affected
People with tremor or larger touch contact areas, and anyone tapping on a moving vehicle.
Learn more
- Understanding Understanding document (opens in a new tab)
Related scenarios
- Tap Target Smaller Than the Required 24×24 Pixel Minimum
- Small Icon Buttons Packed Too Close Together to Tap
- Pagination Numbers Packed Too Tightly Below 24 Pixels
- Tiny Carousel Dots Clustered With No Spacing Between Them
- Calendar Day Cells Too Small to Tap in Compact View
- Toolbar Icons Packed Edge to Edge With No Gap