Accessibility Testing
📌 Covered in this chapter:
Keyboard-Only Testing · Screen Reader Testing (NVDA/VoiceOver) · Heading & Form Checks · Color Contrast Ratios · Automated Lighthouse Audits · Accessibility Checklist
Welcome to Phase 10 (Chapter 27): Accessibility Testing! Audit and verify that web pages meet WCAG 2.2 accessibility standards.
1Focus Ring Styling Example
CSS — Focus Visible Ring
▶ Run in HTML Editor
<style>
/* Visual focus rings for keyboard Tab navigation */
button:focus-visible, a:focus-visible {
outline: 3px solid #f97316;
outline-offset: 2px;
}
</style>
<button>Keyboard Focusable Button</button>