CSS, or Cascading Style Sheets, defines the look and formatting of that HTML. Both are essential to coding your own website, and here's how to get acquainted with them.

Thankfully, effective CSS management techniques can significantly improve performance, simplify workflows and enhance scalability, making it easier to maintain a dynamic and responsive website.

jsFiddle lets developers play with the three core elements of Web development. Check out this powerful application for rapid prototyping and testing.