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.

Building a website is a rewarding project that allows you to celebrate your passions and personality. As you continue to learn HTML, CSS and JavaScript, embrace a growth mindset. With practice and ...

a JavaScript file and the HTML file itself. The cascading nature of CSS files is attributed to the fact that style information for a webpage can be defined in any of three different places, also known ...