If you want to master HTML, CSS and JavaScript, this is the best course for beginners. It teaches the fundamentals of web design and development, focusing on front-end technologies.

jQuery UI is another option for building HTML and JavaScript-based application interfaces. It's completely open source and has the advantage of being directly compatible with jQuery, jQuery Mobile, ...

CSS: Enter CSS to be applied to the HTML used in your tests. It is placed between <style> elements in the header portion of the page. HTML: This area allows you to enter HTML to be used in your tests.

At its I/O 2025 developer conference, Google launched Stitch, an AI-powered tool to help design web and mobile app frontends by generating the necessary UI elements and code.

The PS5 UI has been recreated in JavaScript and it fully explorable with your keyboard. It has also been turned into a coding tutorial.