What is HTML (HyperText Markup Language)?

What is HTML?

HTML (HyperText Markup Language) is the markup language that forms the meaningful skeleton of a web page. It tells the browser which text is a heading, paragraph, list, link, image, form field, or table.

HTML is not a programming language; it is not used to write conditions, loops, or calculations. Its role is to structure content and give the right meaning to browsers, search engines, and screen readers.

How Does It Work?

HTML documents are made of elements. Tags such as h1, p, a, img, button, form, section, and article define page structure. The browser parses the document, turns it into a DOM tree, and renders it visually with CSS.

Semantic HTML matters for accessibility and SEO. For example, using button for an interactive action instead of a div is better for keyboard access, screen readers, and form behavior.

Business Use

HTML is the foundation of corporate websites, e-commerce pages, SaaS dashboards, email templates, and documentation pages. Clean HTML affects page speed, accessibility, maintainability, and how search engines understand the content.

CSS controls presentation and JavaScript controls interaction; HTML provides the content and meaning layer they build on. When that separation is ignored, interface maintenance and accessibility issues grow quickly.