HTML and CSS use a box model, which means that page elements include margins, padding, background colors and, optionally, decorative borders.

How to Create a Border Around Your Webpage. If you want to place a border around an entire Web page, you can use the CSS border tag. CSS, which stands for cascading style sheets, is the styling ...

Learn how cascading style sheets (CSS) work, and how they can help you properly create HTML page layouts that conform to industry best practices.

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.

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