MOJPLAYWIN / FIELD STUDIO
Field guide 25 / 50 · Input

Design reachable action buttons for narrow mobile screens

Original applied analysis · Practical browser-game engineering · First published 23 October 2026

The practical problem

Hint, Pause and Restart are often grouped into tiny icons that fingers cannot operate reliably. Wrong taps may erase progress.

Implementation protocol

Increase actual hit target area, maintain visible spacing, and separate destructive controls from high-frequency actions. Test at 360 CSS pixels wide.

Worked scenario

A 20-pixel icon can sit inside a roughly 44-pixel interactive region. Verify that adjacent button hitboxes do not overlap.

What could go wrong

Invisible hit areas can still create accidental activations.

Acceptance criteria

Perform repeated one-handed play tests and check focus outlines.

Source material and evidence boundaries

For the topic Design reachable action buttons for narrow mobile screens, use the sources listed below to check relevant methods. Any worked figures illustrate a scenario, not measured MojPlayWin performance. Consult the shared evidence standards before applying the method.