Skip to main content

Why is it important to use correct HTML tags instead of <div> / <span>?

HTMLJunior~2 min read
Suggest an edit

Using the correct HTML tags (semantic ones) instead of <div> and <span> matters because HTML is not just a way to "put blocks on the screen", but a language that describes the meaning and structure of content. When a developer replaces meaningful elements with "empty containers" like <div> and <span>, they break the page's semantics, and that directly affects accessibility, SEO, and interface behavior.

1. Semantic tags give the browser and the screen reader context

Screen readers do not "see" the visual design; they read the HTML structure.

  • <button> announces: this is a button, you can activate it.
  • <nav> says: this is a navigation menu.
  • <header> and <main> mark out logical regions.

If everything is wrapped in <div>, the screen reader will simply say:

"group, group, group" and the user will not understand that this is a button or a link.

Good:

html
<button>Add</button>

Bad:

html
<div onclick="addItem()">Add</div>

2. Semantics is a "site map" for search engines

Search engines (Google, Bing, and others) analyze tags to understand what matters on the page:

  • <h1>: the main heading,
  • <article>: a standalone piece of content,
  • <section>: a meaningful section,
  • <footer>: a bottom block with additional information.

If <div> is used instead, the search engine loses its understanding of the structure, and the page gets worse SEO ranking.

3. Correct tags provide built-in accessibility and behavior

HTML elements already come with built-in functionality:

  • <button> gets focus via Tab, and activates via Enter and Space,
  • <a> supports keyboard navigation and href,
  • <form> and <label> are linked automatically.

Replacing this with <div> plus a JS handler means manually adding: tabindex, role, key-handling logic, aria labels: otherwise the element becomes inaccessible to the keyboard and to screen readers.

4. Semantics makes code maintainable and understandable

When another developer or an automated tool sees:

html
<header><nav>...</nav></header> <main><article>...</article></main>

they instantly understand the logic and boundaries of the meaningful blocks.

If the code only has <div> and <span>, it turns into a "meaningless brick wall" where nothing is clear without CSS and JS.

5. It's a requirement of the WCAG and HTML Living Standard

The specifications state directly:

"Use elements according to their intended purpose." This is one of the accessibility criteria (WCAG 1.3.1), and violating it makes a site unusable for screen reader users and legally non-compliant.

Conclusion:

Using the correct HTML tags means giving structure meaning. This matters because it:

  • helps screen readers "understand" a page,
  • improves SEO and indexing,
  • enables keyboard navigation,
  • simplifies maintenance and scaling,
  • meets accessibility standards.

<div> and <span> are needed only when there is no suitable meaningful tag. In every other case, semantics make a site alive, understandable, and truly accessible.

Short Answer

Interview ready
Premium

A concise answer to help you respond confidently on this topic during an interview.

Suggest an edit