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Get Started Free →Use when reviewing rendered HTML, interactive components, or design-system patterns related to Support content reflow at 400% zoom. Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output where relevant.
.claude/skills/thedaviddias-zoom-reflow/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-13 | ✗→✓ | ▲ Improved | 8% | 0% |
| case-09 | ✓→✓ | ＝ Same ✓ | 40% | 0% |
| case-10 | ✓→✓ | ＝ Same ✓ | 18% | 0% |
| case-02 | ✓→✓ | ＝ Same ✓ | 28% | 0% |
| case-03 | ✓→✓ | ＝ Same ✓ | 13% | 0% |
Users with low vision zoom to 400% to read content—horizontal scrolling at that level makes it impossible to track lines of text and navigate effectively.
Zoom the browser to 400% and verify content reflows to a single column without horizontal scrolling, truncation, or overlapping elements. Test all interactive features remain functional at this zoom level.
Use responsive CSS with relative units (rem, em, %) instead of fixed pixels. Implement fluid layouts that adapt to viewport width. Test with CSS media queries to ensure layouts reflow gracefully.
Explain how users with low vision rely on browser zoom up to 400% to read content, and why horizontal scrolling creates significant barriers for users who can only see a small portion of the screen at once.
Review the rendered markup and interactive states that affect Support content reflow at 400% zoom. Flag exact elements, roles, labels, focus behavior, or keyboard interactions that violate the rule, and note how to verify the fix with browser accessibility tooling or assistive tech.
For full implementation details, code examples, and framework-specific guidance, see references/rule.md.
Rule page: https://frontendchecklist.io/en/rules/accessibility/zoom-reflow
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-08 | fail→fail | 11,754 | 8,753 | -26% | 1 | 1 | 0% | 1,745 | 1,753 | +0% | 0 | 0 | — |
case-09 | pass→pass | 11,077 | 12,909 | +17% | 1 | 1 | 0% | 2,077 | 2,912 | +40% | 0 | 0 | — |
case-01 | fail→fail | 14,769 | 13,319 | -10% | 1 | 1 | 0% | 2,799 | 2,896 | +3% | 0 | 0 | — |
case-10 | pass→pass | 12,123 | 10,922 | -10% | 1 | 1 | 0% | 2,237 | 2,635 | +18% | 0 | 0 | — |
case-02 | pass→pass | 3,503 | 2,659 | -24% | 1 | 1 | 0% | 662 | 847 | +28% | 0 | 0 | — |
case-03 | pass→pass | 11,320 | 10,489 | -7% | 1 | 1 | 0% | 2,172 | 2,454 | +13% | 0 | 0 | — |
case-04 | pass→pass | 10,814 | 7,535 | -30% | 1 | 1 | 0% | 1,913 | 1,749 | -9% | 0 | 0 | — |
case-05 | pass→pass | 11,552 | 9,029 | -22% | 1 | 1 | 0% | 2,098 | 1,961 | -7% | 0 | 0 | — |
case-06 | pass→pass | 19,995 | 18,438 | -8% | 1 | 1 | 0% | 3,434 | 3,465 | +1% | 0 | 0 | — |
case-07 | pass→pass | 6,814 | 8,230 | +21% | 1 | 1 | 0% | 1,648 | 1,941 | +18% | 0 | 0 | — |
case-11 | pass→pass | 12,113 | 13,361 | +10% | 1 | 1 | 0% | 2,281 | 2,878 | +26% | 0 | 0 | — |
case-12 | pass→pass | 10,637 | 9,133 | -14% | 1 | 1 | 0% | 2,018 | 2,120 | +5% | 0 | 0 | — |
case-13 | fail→pass | 14,439 | 12,640 | -12% | 1 | 1 | 0% | 2,360 | 2,553 | +8% | 0 | 0 | — |
case-14 | pass→pass | 18,697 | 15,180 | -19% | 1 | 1 | 0% | 3,013 | 2,812 | -7% | 0 | 0 | — |
case-15 | pass→pass | 7,224 | 4,888 | -32% | 1 | 1 | 0% | 1,430 | 1,419 | -1% | 0 | 0 | — |
case-16 | pass→pass | 8,214 | 5,351 | -35% | 1 | 1 | 0% | 1,478 | 1,378 | -7% | 0 | 0 | — |
case-17 | pass→pass | 12,794 | 11,307 | -12% | 1 | 1 | 0% | 2,284 | 2,294 | +0% | 0 | 0 | — |
case-18 | pass→pass | 11,330 | 8,880 | -22% | 1 | 1 | 0% | 1,919 | 1,858 | -3% | 0 | 0 | — |
case-19 | pass→pass | 12,797 | 10,010 | -22% | 1 | 1 | 0% | 2,267 | 2,070 | -9% | 0 | 0 | — |
case-20 | pass→pass | 5,931 | 4,597 | -22% | 1 | 1 | 0% | 1,125 | 1,161 | +3% | 0 | 0 | — |
case-21 | pass→pass | 7,917 | 4,357 | -45% | 1 | 1 | 0% | 1,526 | 1,190 | -22% | 0 | 0 | — |
case-22 | pass→pass | 12,833 | 11,027 | -14% | 1 | 1 | 0% | 2,392 | 2,362 | -1% | 0 | 0 | — |
case-23 | pass→pass | 13,721 | 10,467 | -24% | 1 | 1 | 0% | 2,440 | 2,366 | -3% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 23 cases were attempted. The headline lift of +4 percentage points is the difference between those two pass rates over the 23 comparable cases.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
Other measured skills in the registry, with their headline benchmark lift.