The W3C Markup Validation Service. CSS. HTML5. This specification defines the 5th major version, second minor revision of the core language of the World Wide Web: the Hypertext Markup Language (HTML).
In this version, new features continue to be introduced to help Web application authors, new elements continue to be introduced based on research into prevailing authoring practices, and special attention continues to be given to defining clear conformance criteria for user agents in an effort to improve interoperability. This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at This document was published by the Web Platform Working Group as a Editors Draft. HTML 4.01 / XHTML 1.0 Reference.
HTML Codes - Free. HTML Tags. HTML tags (otherwise known as "HTML elements"), and their respective attributes are used to create HTML documents so that you can view them in browsers and other user agents.
Note that not all browsers/user agents support all HTML tags and their attributes, so you should try to test your pages in as many browsers as you can. Complete list of HTML tags Below is a complete list of HTML tags from the HTML 4.01 specification. Learning HTML5. Software training online-tutorials for Adobe, Microsoft, Apple & more.