What will be the difference for the end user in using different HTML tags?

The difference in using tags for the end user manifests in:

• Semantics: Proper use of tags (<article>, <nav>, <aside>) improves accessibility for people with limitations (using screen readers), as they better understand the structure of the page.
• Default visual display: Some tags have built-in browser styles (for example, <h1> is larger than <p>).
• SEO: Search engines use semantic tags to understand the page content, which affects ranking.
• Interaction: Element tags for forms (<input>, <button>) provide interactive elements for data input and actions.
• Performance: Excessive use of <div> instead of semantic tags can increase the size of the DOM tree, slowing down rendering.

For example, using <button> instead of <div> with a click handler:

<!-- Using button -->
<button onclick="doSomething()">Action</button>

<!-- Using div -->
<div onclick="doSomething()" style="cursor: pointer;">Action</div>

In the first case, the user gets the standard button behavior (focus, activation with Enter/Space) without additional effort from the developer.