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 you haven't checked out CSS, understanding the most often used core selectors is a good place to start. I want to learn the CSS language, so how do I get started? I hear this question from ...

This definition explains the meaning of CSS (cascading style sheets) and how using them with HTML pages is a user interface (UI) development best practice that complies with the separation of concerns ...

Ryan Boudreaux covers the basics about CSS specificity hierarchy in an effort to make this tricky concept easier to understand. If a CSS rule doesn’t seem to work when it looks like it should and your ...

An often-overlooked website performance bottleneck occurs in processing cascading style sheets and the subsequent application of CSS selectors across a webpage's document object model. To speed up how ...

CSS selectors currently allow styling elements based on their descendants, following siblings, or their own state. However, there is no way to style an element based on the state of a child, ...