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 ...

Because CSS is rendered by following a bottom-up parse, the most efficient coding targets the most specific element first (and by first, we mean the furthest-right selector).

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 ...