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.

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

Header code here Navigation bar code here Load the style sheet containing your CSS code. If you do not use separate style sheets, the CSS will be located between the tags at the top of your HTML file.

I think everyone should have an editor to work on Web pages, just in case they need one in a pinch or they want to learn how to code HTML, CSS, PHP or Javascript. Knowledge is power, right?

Back in 2012, Mozilla launched Thimble, an online code editor for teaching the basics of HTML, CSS and JavaScript. Over time, though, things got pretty quiet around the project as other browser ...