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

These three programming languages are tools that you can use to create, design and style your very own website.

How do I learn to code in HTML and CSS on my Mac? Web design is one of the most useful skills you can learn, and it’s easy to learn HTML and CSS (the two main pillars of web pages) in Mac OS X.