Also Code samples are provided.

Teaches new CSS3 properties like animation, transition, opacity.
Teaches new Javascript APIs in HTML5.
Teaches and demos HTML5 tags like

Who is this application for?
This application is for anyone who is a web developer, wants to be a web developer or who wants to enhance his web development skills.

I want to see the code. Is it possible?
Yes, we have given source code to read and understand what is going on in the demo. Feel free to use it anywhere.

What all does this app teach me?
It will teach you.
1. How to give rounded corners to anything in web page.
2. How to move, rotate, enlarge the elements in web page.
3. How to animate elemets in web page using CSS3
4. How to animate elemets in web page using Javascript
5. How to draw on HTML5 Canvas
6. How to use advanced HTML5 Client side storage API
7. How to use Audio and Video tags in HTML5

Can I edit and try running the code?
Yes. The app also lets you edit the code and run it within the app. This will enable you to play and fiddle with the code giving you better understanding of HTML5, CSS3 and Javascript.