What is HTML5?

HTML stands for HyperText Markup Language. It is a standardized system for tagging text files to achieve font, color, graphic, and hyperlink effects on World Wide Web.

HTML5 is the new HTML standard.
• Evolution of HTML 4 and DOM level 2
• Removal or redefinition of presentational markup
• Formalized foundation-level APIs
• The evolution of the browser into a programming platform
Learning what HTML5 is, and what it isn’t IS important!

What’s new in HTML5?
• New Elements and Attributes
• Full CSS3 Support
• Video and Audio
• 2D/3D Graphics
• Local Storage
• Local SQL Database
• Web Applications

The internet, and the use of the internet, has changed a lot since HTML 4.01 became a standard in 1999. Today, some elements in HTML 4.01 are obsolete, never used, or not used the way they were intended. These elements are removed or re-written in HTML5.
To better handle today’s internet use, HTML5 also includes new elements for better structure, better form handling, drawing, and for media content.

W3 Schools / HTML5 Introduction

HTML Reference
HTML5 – New Elements
HTML5 Tags

HTML Global Attributes
HTML Event Attributes

HTML5 vs. HTML4