Reflow at 320px: WCAG Accessibility Guide for Shopify Store Owners
Reflow at 320px is evaluated in WCAG 2.2 audits under criterion 1.4.10. Here is what it means for shopify store owners, where it breaks, and how to fix it in code.
Quick Answer
- The requirement: Reflow at 320px falls under WCAG 1.4.10 (Level AA), a criterion checked in WCAG 2.1 and 2.2 AA audits.
- Where it matters for shopify store owners: theme templates, product pages, and app embeds.
- Typical failure: Content forces horizontal scrolling when zoomed to 400 percent, which is painful for low-vision users.
- The fix: Use responsive layouts so content reflows into a single column at 320 CSS pixels wide.
Common Failure Patterns
- Content forces horizontal scrolling when zoomed to 400 percent, which is painful for low-vision users.
- It often appears in theme templates, product pages, and app embeds, which are the flows visitors rely on most.
- It is easy to reintroduce with each release when nobody re-scans the live site.
How Rogabot Helps
- Headless Chromium scans your live, rendered pages with zero setup and no repository access.
- You receive PR-ready HTML, CSS, and ARIA code diffs with exact line numbers.
- A dated point-in-time compliance certificate and a ready-to-publish Accessibility Statement.
Deep Dive: Reflow at 320px for Shopify Store Owners
For shopify store owners, accessibility is not an abstract checklist. It decides whether a visitor can finish the tasks that matter: theme templates, product pages, and app embeds. Reflow at 320px is one of the criteria auditors test in these flows, mapped to WCAG 1.4.10.
Content forces horizontal scrolling when zoomed to 400 percent, which is painful for low-vision users. The practical remedy is straightforward: use responsive layouts so content reflows into a single column at 320 CSS pixels wide. Fixing the markup at the source keeps the improvement for every user, on every device and assistive technology.
US organizations are measured against ADA Title III, Section 508, the California Unruh Civil Rights Act, Colorado HB 21-1110, the DOJ ADA Title II rule, and W3C WCAG 2.1 and 2.2 Level AA. Auditing against WCAG at the code level is the most defensible way to show good-faith effort. This guide is educational and is not legal advice.
How the Common Approaches Compare
| Approach | What it changes | Evidence you receive |
|---|---|---|
| Manual spot checks | Whatever the reviewer happens to test | Informal notes, hard to repeat |
| Overlay widgets | A toolbar layer; underlying DOM, labels, and keyboard behavior stay as they are | No code-level fixes |
| Rogabot audit | Finds issues in rendered pages and outputs PR-ready code diffs | Dated certificate, executive PDF, Accessibility Statement |
Example Fix
Before
.page { width: 1200px; }After
.page { max-width: 1200px; width: 100%; }Three Steps to a Documented Fix
- Zero-setup live scan. Provide your domain. Headless Chromium crawls public routes and the rendered DOM.
- Developer code remediation. Get PR-ready HTML5, CSS, and ARIA diffs with exact line numbers.
- Point-in-time certification. Obtain a dated certificate, executive PDF report, and an updated Accessibility Statement.
Find and Fix Accessibility Issues Before They Become Legal Risk
Rogabot gives shopify store owners automated WCAG 2.2 AA audits, developer-ready code diffs, and compliance documentation without installing anything.
Start a Rogabot AuditFrequently Asked Questions
What does WCAG 1.4.10 require for shopify store owners?
Reflow at 320px (WCAG 1.4.10, Level AA) means the following in practice: Use responsive layouts so content reflows into a single column at 320 CSS pixels wide.
Can an accessibility overlay fix reflow at 320px?
Overlays only toggle superficial styles and do not fix underlying DOM HTML, form labels, or broken keyboard navigation. Lasting fixes are made in the page code, which is what Rogabot's developer diffs target.
How does Rogabot audit a website for shopify store owners?
Rogabot audits your live website with zero setup. It runs headless browser rendering across your public URLs and generates exact developer remediation diffs, compliance certificates, and ready-to-publish accessibility statements.
Educational content only. It is not legal advice, and no tool can guarantee legal compliance. Consult qualified counsel for your situation.