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 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.

什么是 HTML5? HTML5 是下一代 HTML 标准。 HTML , HTML 4.01的上一个版本诞生于 1999 年。 自从那以后，Web 世界已经经历了巨变。 HTML5 仍处于完善之中。 然而，大部分现代浏览器已经具备 …

Learn the essentials of HTML5 with our comprehensive tutorial covering features, syntax, and best practices.

H5P makes it easy to create, share and reuse HTML5 content and applications. H5P empowers everyone to create rich and interactive web experiences more efficiently - all you need is a web …

May 28, 2019 · The term HTML5 is essentially a buzzword that refers to a set of modern web technologies. This includes the HTML Living Standard, along with JavaScript APIs to enhance …

Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

There are many online HTML tools on the web that were designed for markup editing, but none of them contained all of the essential applications that we were looking for. We were always jumping from …

New form elements, along with better integration between HTML5, CSS, and JavaScript has made it possible to create full-scale web applications using the three languages that are native to the web …