No wonder then that the Bureau of Labor Statistics projects ... put them into practice right from within the course itself. Instead of introducing each and every HTML tag or CSS properties ...

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.

This definition explains the meaning of CSS (cascading style sheets) and how using them with HTML pages is a user interface (UI) development best practice that complies with the separation of concerns ...