Teaching designers about flexible box layout for nearly a decade, Flexbox Froggy is probably the most well-known CSS game. For good reason, too. Not only is flexbox one of the trickier CSS concepts to ...

Understanding how browsers parse CSS and render websites is an important first step towards writing more efficient code. In this first piece on efficient CSS, we look at selectors, how the browser ...

If your stylesheets are a mess, fear not, the Firefox and Opera extension Dust Me Selectors can help you cut the cruft and get a handle on your code.

Follow these five CSS performance optimization suggestions and reduce the possibility that your CSS selectors will be the performance bottleneck on your website. Dig Deeper on Front-end, back-end and ...