HTML5 itself is the latest standard for HTML and you can find its home page at http://www.w3.org/TR/html5/.
Its ancestor HTML 4.01 came in 1999, and the Internet has changed significantly since then. HTML5 was designed to deliver rich content without the need for additional plugins. The current version delivers everything, from animation to graphics, music to movies, and can also be used to build complicated web applications.
HTML5 is also designed to be cross-platform. It is designed to work irrespective of whether you are using a PC, a Tablet, a Smartphone, or a Smart TV.
We will use HTML5 while working on ...