Accessibility — Complete Guide
Accessibility — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of HTML Tutorial on Toolliyo Academy.
On this page
HTML Tutorial · Lesson 41 of 100
Accessibility
Basics ✓ → Forms & semantics → APIs & performance → Projects
Forms & semantics · 2 — Forms, SEO, a11y · ~6 min · HTML — Accessibility & Responsive Design
What is this?
Accessibility means people can perceive, operate, and understand the UI — structure, contrast, names, keyboard.
Why should you care?
MarkupVerse banking UIs must meet WCAG-minded basics from the HTML up.
See it live — copy this example
Save as demo.html and open in your browser, or use Run Example below.
<button type="button" aria-label="Close dialog">×</button>
<img src="/chart.png" alt="Account balance rose 12% in June">
<a href="#main" class="skip">Skip to content</a>Run Example »
Edit the code below and click Run to see the result in Toolliyo’s live editor.
What happened?
- Start with semantic HTML before ARIA.
- Alt text, labels, focus order, and contrast beat bolting roles onto divs.
Practice next
- Fix an icon button label.
- Write real alt.
- Add skip link.
- Check contrast on a CTA.
- Turn on a screen reader briefly.
Remember
Semantics first. Names for controls. Keyboard path.
MarkupVerse a11y basics
Close icon has aria-label.
Outcome: SR announces Close dialog.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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