W3C tech mentioned on the web: "What is CSS, and why is it important?"
"CSS stands for Cascading Style Sheets. It is the coding language that gives a website its look and layout. Along with HTML, CSS is fundamental to web design. Without it, websites would still be plain text on white backgrounds.
Before the development of CSS in 1996 by the World Wide Web Consortium (W3C), Web pages were extremely limited in both form and function."