The best approach to make a website accessible is to design and build accessibility in from the start, not add it later as a fix.
✅ 1️⃣ Start with Semantic HTML (MOST IMPORTANT)
Use correct HTML elements for correct meaning.
<button>Submit</button>
<nav>...</nav>
<main>...</main>
<form>...</form>
✔ Screen readers understand structure
✔ Keyboard works automatically
✔ Less ARIA needed
Semantic HTML solves ~70% of accessibility issues
✅ 2️⃣ Ensure Full Keyboard Accessibility
Everything should work using Tab, Enter, and Arrow keys.
✔ Links
✔ Buttons
✔ Forms
✔ Modals
❌ Avoid mouse-only interactions
button:focus {
outline: 2px solid blue;
}
✅ 3️⃣ Provide Proper Focus Management
- Logical tab order
- Visible focus styles
- Focus trap inside modals
- Return focus when modal closes
✅ 4️⃣ Use ARIA Only When Needed
ARIA is a last resort, not a replacement for HTML.
✔ aria-label ✔ aria-live ✔ role="alert"
❌ Don’t add ARIA where native HTML exists
Rule: No ARIA is better than bad ARIA
✅ 5️⃣ Ensure Color Contrast & Readability
- Text contrast ≥ 4.5:1
- Don’t rely on color alone
- Use readable font sizes
✅ 6️⃣ Support Screen Readers
- Use meaningful
alttext for images - Proper labels for inputs
<label for="email">Email</label>
<input id="email" />
✅ 7️⃣ Make Responsive & Zoom-Friendly Layouts
- Use
rem,%,em - Avoid fixed heights
- Support 200% zoom without breaking layout
✅ 8️⃣ Respect Motion Preferences
@media (prefers-reduced-motion: reduce) {
* {
animation: none;
}
}
✅ 9️⃣ Test with Real Tools
Manual Testing
✔ Keyboard only
✔ Screen reader (NVDA / VoiceOver)
Automated Tools
✔ Lighthouse
✔ axe DevTools
✔ WAVE
✅ 🔟 Follow WCAG Guidelines
- WCAG 2.1 AA is the industry standard
- Covers:
- Perceivable
- Operable
- Understandable
- Robust (POUR)
🎯 Short Interview Answer
The best approach to accessibility is to start with semantic HTML, ensure full keyboard support, use ARIA only when necessary, maintain good color contrast, manage focus correctly, and test with screen readers and accessibility tools following WCAG guidelines.
⭐ One-line summary
Build accessibility into your design, markup, styles, and interactions from day one—not as an afterthought.