F Kitchen Sink

Accessibility audit rules

Resize text

Accessibility rule handbook metadata

Rule
DET.A11Y.GENERIC.RESIZE_TEXT · lane deterministic · scope generic
Page status
current
page_version
ea9e31185b8ff976b15a38519ce10b19482b8a2d59cec58d7bc03b9fd6c0139d
generated_at
2026-05-28T05:09:12.000Z
registry_fingerprint
b3797010c3ca988bb0d21d5e85d4efece0b9e83f311c2d4981ebbf402df7a7c2

Related WCAG success criteria

Indicative mapping for compliance reporting — not a conformance claim. Criteria: 1.4.4

How this rule is checked

Deterministic lane — scope generic. Detected by det-a11y-generic-*.check.js or the axe lane for WCAG-tagged violations.

  • Harness: auditor-tests/invoke-a11y-ruleset-harness.sh on the Before fixture.
  • Audit: analyze-website-a11y.mjs --only-deterministic-rule-ids DET.A11Y.GENERIC.RESIZE_TEXT

Module: docs/design/a11y-audit/deterministic-a11y-rules.md#det-a11y-generic-resize-text. See Before / After below.

Purpose

Viewport must allow zoom; avoid clipping enlarged text (1.4.4).

Passing signals

  • DOM and/or repo signals satisfy the rule implementation in tools/website-a11y-auditor.
  • For axe-backed WCAG criteria, use --lanes axe,det with an appropriate --standard preset.

Failing signals

  • Auditor emits a finding with ruleId DET.A11Y.GENERIC.RESIZE_TEXT on the crawled URL.
  • Harness: auditor-tests/invoke-a11y-ruleset-harness.sh DET.A11Y.GENERIC.RESIZE_TEXT expects ≥1 finding on the Before fixture.

Before example

Before (failing example)

Tiny text may fail when zoomed.

After example

After (passing example)

Readable base size using rem.

Evidence and remediation

  1. Reproduce with analyze-website-a11y.mjs --only-deterministic-rule-ids DET.A11Y.GENERIC.RESIZE_TEXT when lane is deterministic.
  2. Apply the After markup pattern (or fix generator source for KS rules).
  3. Re-run harness or audit until the rule is clean on the target URL.