HTML5 is a markup language that is now at the heart of the development process of most websites and web applications. Here's a HTML5 cheat sheet that will certainly come in handy for beginners as well as seasoned veterans.
HTML5 an evolving standard that is being used to write dynamic websites and web applications that is able to deliver high quality graphics and audio as well as make them adaptable across different platforms. It basically makes websites and apps look good on whatever computing device you wish to display them on.
For those interested in learning HTML5, or even web developers looking to refresh their memories on the markup language, the mega cheat sheet from MakeaWebsitehub.com: