- Success Criterion 2.5.8
- Conformance level AA
2.5.8 · Target Size (Minimum)
Lesson overview · Target Size (Minimum)
In plain language
Click/tap targets must be at least 24x24 CSS pixels, or have enough empty space around them.
Who it affects
People with tremor or larger touch contact areas, and anyone tapping on a moving vehicle.
How to check
Measure small controls (icons, dots, x-buttons) with dev tools: under 24px is a fail unless spacing or a bigger duplicate control compensates.
Common misconception
A checkbox's visible square can look 24px while its actual clickable area, set by CSS, is much smaller. This rule measures the real hit target, not the visual size.
Learn more
Scenarios in this lesson
- 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
- Checkbox Hit Area Limited to Its Tiny Visible Glyph
- Table Row Action Icons Too Small and Too Close Together
- Star Rating Widget With Tiny, Hard-to-Tap Star Targets
- Chip or Tag Remove Button Too Small Inside a Dense Group
- Slider Thumb Target Smaller Than the Required Minimum Size
- Link Cluster With Targets Spaced Too Close Together
- Inline-Text Target-Size Exemption Applied Where It Doesn’t Belong