2. HTML We write HTML in files that end with the .html extension (like homepage.html). To write HTML and CSS code, you’ll want to install a code editor. Nowadays, one of the most popular free ...

In this web development tutorial, we discuss the strengths and weaknesses of CSS-in-JS and provide code examples.

jsFiddle lets developers play with the three core elements of Web development. Check out this powerful application for rapid prototyping and testing.