Alongside HTML and CSS ... JavaScript code in your app or site, and the latest syntax for working with arrays, functions, and loops. The University of Pennsylvania also offers a free course ...

Codeacademy offers free coding classes in 12 programming and markup languages, including Python, Ruby, Java, JavaScript, jQuery, React.js, AngularJS, HTML, Sass and CSS. The courses promise to ...

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 ...