Vadim Makeev, HTML Academy
Semantics
is like monads.
<b> or <strong><section> or <article><div> or <span><i> for icons?Well, it does if you care. But you don’t have to.
User Experience
<div> — 497 whatever<img alt> — 0 of 53 oh, damn<a href></a> — 7 not good<h*> — 0 pure evil
<html lang="en">, <html lang="ru"><h1>, <h2>, <h3>, <h4>, <h5>, <h6><img alt="">, <svg role="image" aria-label=""><figure>, <figcaption><ul>, <ol>, <li>For search engines, reader modes, screen readers, new devices.
<header>, <main>, <aside>, <footer><h1>, <h2>, <h3>, <h4>, <h5>, <h6><fieldset>, <legend>, <input><button> and <a><a href="" aria-label="Twitter"></a>For keyboard and screen reader users.
<body>
<h1>Heading 1</h1>
<p>The quick green frog</p>
<h2>Heading 2</h2>
<p>Jumps over the lazy dog</p>
</body>
<body>
<header>Header</header>
<nav>Navigation</nav>
<main>Main content</main>
<aside>Secondary content</aside>
<footer>About</footer>
</body>
<header>
<h1>Telegram</h1>
<a href="/contacts">Contacts</a>
<a href="/chats">Chats</a>
<a href="/options">Options</a>
</header>
<nav>
<h2>Chats</h2>
<a href="/chat-1">
<img src="chat-1" alt="Chat 1">
<h3>Chat 1</h3>
</a>
</nav>
<main id="chat-1">
<h2>Chat 1</h2>
<p>Whassup?</p>
<p>Whassup!</p>
</main>
<main id="chat-2" hidden>
<main id="chat-3" hidden>
Semantics is easy.
If you know why.
Now you know.