In plain English
Some controls only respond to fancy finger moves: pinch to zoom a product photo, swipe along a path to advance a gallery, two-finger rotate a 3D view. People with tremors, limited dexterity, or who use a single switch or head pointer cannot make those gestures. This rule says: whatever you can do with a complex gesture, you must also be able to do with a plain single tap or click.
Who this is for
- People with motor or dexterity differences, who cannot pinch or swipe precisely.
- Assistive-device users (switch, head pointer), where multi-touch is impossible.
How to check and fix it yourself
Find anything you operate with pinch, multi-finger, or a directional swipe path. Make sure a simple tap alternative exists too:
Pinch-to-zoom image → also add + / - zoom buttons. ✓
Swipe-only gallery → also add left/right arrow buttons. ✓Where we can help
Gesture-only controls are common on mobile product galleries and easy to ship without a tap fallback. We test your galleries, zoomers, and carousels for a single-tap alternative. It is one of the WCAG 2.1/2.2 checks.