Editor’s note: This How To assumes a basic understanding of HTML. Along with HTML and JavaScript, CSS forms the foundation of the open Web. These three technologies power just about every website, and ...

I’ve already discussed how you can learn to code for free using languages such as Ruby and JavaScript, but this time we’ll explore an even more basic language that can help to make your websites pop.

Common Web developer wisdom says tweaking the performance of Cascading Style Sheets (CSS) selectors isn't worth the hassle, but at tremendous scale encountered by popular sites such as LinkedIn, that ...