Use this handy, simplified guide to quickly learn HTML and CSS -- a foundation of modern web development.

Where to learn HTML and CSS online depends on your goals and preferred learning style, experts say, as courses vary in length, cost and structure. Here are nine free and paid resources to kick ...

The design site CSS-Tricks has their own guide for learning HTML and CSS—but they’ve compiled plenty of alternatives into a wide-ranging but approachable list.

Master CSS headers with this complete guide. Styling, hierarchy, and branding tips for better websites. Updated for 2025.

Yet CSS supports properties that plain HTML does not, such as image opacity. For example, if you want a transparent photo of your company headquarters to appear on your website homepage, you can ...