Semantic html

HTML semantics refers to the meaningful structure and organization of content within an HTML document. It involves using HTML elements in a way that accurately reflects the purpose and meaning of the content they enclose. Semantic HTML aims to provide clear and contextually relevant information about the content, which benefits both human users and search engines.

By using semantic HTML, you're not just indicating how content should be presented visually, but also conveying its inherent meaning and relationships. This helps assistive technologies (such as screen readers for visually impaired users) understand the content better and allows search engines to index and rank your content more accurately.

For example, using semantic HTML elements like <header>, <nav>, <main>, <section>, <article>, <aside>, and <footer> instead of using generic <div> elements can provide richer context about the role and significance of different content sections within a web page.
Here are some common semantic HTML5 tags:

<header>: Represents the introductory content at the top of a page or a section. Typically includes site logos, navigation menus, and introductory text.
<nav>: Defines a navigation menu, usually containing links to different parts of a website.
<main>: Represents the main content of a web page. There should be only one <main> element per page.
<section>: Defines a thematic grouping of content that could be considered a standalone section. Often used to divide content into distinct blocks.
<article>: Represents a self-contained composition that could be distributed and understood independently. Examples include blog posts, news articles, or forum posts.
<aside>: Contains content that is tangentially related to the main content, such as sidebars, pull quotes, or advertisements.
<footer>: Represents the footer of a section or a page. Often includes copyright information, contact details, and other relevant metadata.
<figure> and <figcaption>: Used to group media content (images, videos, etc.) along with a caption describing the content.
<time>: Represents a specific date and/or time, allowing for machine-readable representation of dates.
<mark>: Highlights text as being marked or highlighted for reference.

Using these semantic tags not only improves the structure and meaning of your HTML documents but also provides benefits for accessibility and SEO. Screen readers and other assistive technologies can better understand the content, and search engines can interpret the page's structure more accurately.