Whatever your reasons, it’s never been easier to start learning how to build websites from scratch than with help from HTML, CSS, & JavaScript All-in-One For Dummies.

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.

Here's an easy-to-follow web developer roadmap that will guide you through the world of HTML, CSS and JavaScript based technologies.

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