At W3Schools you will find complete references about HTML elements, attributes, events, color names, entities, character-sets, URL encoding, language codes, HTTP messages, browser support, and more:

W3C Working Group publishes "HTML5 differences from HTML 4", [130] which provides a complete outline of additions, removals and changes between HTML5 and HTML4.

Dec 22, 2025 · HTML (HyperText Markup Language) is the most basic building block of the Web. It defines the meaning and structure of web content. Other technologies besides HTML are generally …

Dec 13, 2025 · HTML5 is the fifth version of Hypertext Markup Language (HTML), a standard language used to structure webpages. It defines how content on a webpage should be structured and displayed.

This HTML course for web developers provides a solid overview for developers, from novice to expert level HTML.

Learn about HTML5 with our comprehensive tutorials. Increase your understanding of the latest tags, attributes, multimedia, and other features, enabling you to build modern and interactive web pages to …

HTML5 is not just a new version of HTML language enriched with new elements and attributes, but a set of technologies for building more diverse and powerful web sites and applications.