jsFiddle lets developers play with the three core elements of Web development. Check out this powerful application for rapid prototyping and testing.

CSS3 was a very powerful language. He wondered about building Tetris, a Turing Machine, or rendering fractals purely in CSS and HTML. The jury is still out if a Turing machine is possible, but he ...

It's called Dash, and it lets users learn how to use HTML, Javascript, and CSS by working through four projects of increasing difficulty.