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 right inside your browser. A quick tour ...

As you continue to learn HTML, CSS and JavaScript, embrace a growth mindset. With practice and experimentation, you’ll gain confidence and develop your coding skills. This is your creative ...

The core idea is that the islands are your interactive, JavaScript-dependant components, surrounded by pure HTML/CSS markup. By carving up the app in this manner, you can ship all of the HTML ...