jsFiddle is the perfect solution; it provides a custom environment (based on user selections) to test (or fiddle with) your JavaScript, HTML, and CSS code ... to create scrap projects or files.

If you've been thinking of building beautiful websites, all you need is a bit of HTML and CSS. And, of course, the right instructions to guide you along the way. Here are some YouTube channels ...

The Raspberry Pi Foundation has also embedded the Code Editor in the ‘Introduction to web‘ path on the Projects site. This path contains six HTML and CSS projects specifically designed for ...