RESPONSIVE TESTING GUIDE

A practical pre-release checklist.

Use representative viewports and real content. The goal is not to collect screenshots—it is to find layout and interaction failures before users do.

1. Cover the viewport range

• Test a compact phone, a large phone, a tablet, and a laptop.
• Add the exact viewport dimensions from analytics or support reports.
• Rotate devices where orientation changes navigation or content hierarchy.

2. Check layout integrity

• Look for horizontal page overflow, clipped controls, overlapping text, and fixed overlays.
• Verify long titles, translated strings, empty states, validation errors, and populated tables.
• Check adjacent widths around each breakpoint, not only the exact preset.

3. Check interaction and access

• Keep touch targets comfortably usable and controls keyboard accessible.
• Verify accessible names, image alternatives, heading order, focus visibility, and intentional motion.
• Test forms, menus, dialogs, sticky elements, and critical navigation at every representative width.

4. Compare and document

• Overlay the approved design where visual fidelity matters.
• Capture the failure with enough surrounding context to make it reproducible.
• Include the affected viewport, expected result, actual result, and any relevant constraints in the handoff.

5. Finish on physical devices

Responsive emulation creates a fast development loop. Validate critical journeys on physical devices and target browsers before release, especially interactions involving keyboards, safe areas, scrolling, and operating-system UI.