2.5.5Level AAAWCAG 2.1Auto-fix: Yes
Target Size (Enhanced)
The size of the target for pointer inputs is at least 44 by 44 CSS pixels, with documented exceptions.
What it requires
WCAG 2.1 SC 2.5.5 (AAA) is the predecessor to 2.5.8 (AA, 2.2). 2.5.5 requires 44×44 — Apple's Human Interface Guidelines target. 2.5.8 lowered the AA threshold to 24×24.
For Shopify storefronts targeting AAA or for brands that follow Apple HIG / Material Design guidance, 44×44 is the operational target.
Common Shopify failure
Theme social-icon row with 24×24 icons spaced 8px apart — passing AA (2.5.8) but failing AAA (2.5.5).
How to fix it
AccessComply's target-size agent expands click padding to bring the bounding box to 44×44 without resizing the visual icon.
Primary source: W3C — WCAG 2.1 Understanding 2.5.5