A hands-on way into web development. Play through challenges to learn how HTML and CSS work, then keep the reference open while you build.
Twenty build-and-verify challenges covering headings, lists, links, tables, forms, the box model, Flexbox, Grid and more. Earn XP, level up, and unlock achievements. Progress saves in your browser.
Every common HTML element and CSS property, grouped by purpose, with best practices. "Style by Element" shows what applies to text, lists, images, tables and forms. Includes a live HTML/CSS editor.