HTML5 - Wikipedia
https://en.wikipedia.org/wiki/HTML5
HTML5 is a markup language used for structuring and presenting content on the World Wide Web. It is the fifth and last major HTML version that is a World Wide Web Consortium (W3C) recommendation.
HTML5: What's New in The Latest Version of HTML?
https://html.com/html5/
HTML5 is the latest specification of the HTML language, and represented a major break with Use the HTML5 <!DOCTYPE> Declaration. All HTML5 documents should begin with a tag that indicated the...
HTML Style Guide and Coding Conventions
https://www.w3schools.com/html/html5_syntax.asp
A consistent, clean, and tidy HTML code makes it easier for others to read and understand your code. Here are some guidelines and tips for creating good HTML code. Always Declare Document Type.
html5 (@html5) | Твиттер
https://twitter.com/html5
Последние твиты от html5 (@html5). Staging the plaguing of the raised platform. World Wide Web.
HTML 5.1 2nd Edition
https://www.w3.org/TR/html51/
HTML 5.1 2nd Edition. W3C Recommendation 3 October 2017 superseded 28 January 2021. In this version, a significant error with HTML 5.1 has been rectified, as noted in the Errata corrected section.