What is semantic HTML and why is it important for SEO and accessibility?

Semantic HTML means choosing elements by meaning, not by default styles. Tags like header, nav, main, article, and button help assistive tech understand structure and help teams maintain code. It also improves SEO signals because content roles are clearer for crawlers.

<main>
  <article>
    <h1>Frontend roadmap</h1>
    <p>Start with HTML semantics before styling.</p>
    <button>Save progress</button>
  </article>
</main>

Start simple: try this concept in a tiny project before moving to advanced tools.