What is it
HTML at undergraduate level extends basic markup to semantic HTML, accessibility (ARIA attributes), and how HTML documents are structured for both browsers and assistive technologies to interpret correctly.
Why it matters
Semantic, accessible HTML isn't just good practice — it directly affects how usable a website is for people using screen readers, and increasingly affects search engine rankings, making it a practical skill with both ethical and commercial importance.
Exam tip
Choose HTML elements based on what they mean, not how they look by default — using a button element for a clickable action rather than a styled div gives you accessibility and keyboard support for free, without writing any extra code.
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