HTML

HTML (HyperText Markup Language) is the foundational technology: it structures all web content using a system of elements and tags for browser display.

HyperText Markup Language (HTML) is the essential, foundational technology for the World Wide Web. It provides the core structure for all documents: defining elements like headings (`<h1>`), paragraphs (`<p>`), and critical hyperlinks (`<a>`). Browsers parse these tags to render a document into a complete multimedia web page. The current specification is maintained as a 'Living Standard' by the WHATWG, ensuring continuous, active development beyond the widely adopted HTML5 revision. HTML works in concert with CSS (for appearance) and JavaScript (for behavior) to deliver a complete, functional user experience across all platforms.

https://html.spec.whatwg.org/multipage/