Accessibility is not limited to desktop keyboards; it directly impacts touch screens and motor control.
Users with hand tremors, arthritis, parkinson's, or situational constraints (walking, riding a bumpy bus) struggle with microscopic buttons.
The Strict Target Size Standards:
CSS Technique: An icon can visually appear as a 16px glyph, but by adding padding or pseudo-elements (::after), its clickable touch target expands to 48px.
Level 1 · Accessible interaction basics