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

HTML provides the structure, content and layout, CSS adds style and design, and JavaScript adds functionality and interactivity.

How do I learn to code in HTML and CSS on my Mac? Web design is one of the most useful skills you can learn, and it’s easy to learn HTML and CSS (the two main pillars of web pages) in Mac OS X.

JavaScript, CSS, HTML, HTML5, MySQL, WordPress, PHP and Python are the most in-demand tech skills from employers in 2020, according to a Upwork report.