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).

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 ...

To do this, start with the element name, then write the period (.) character, followed by the name of the class. So no, Google does not use the CSS .class selector for this purpose.