What is CSS?

CSS stands for Cascading Style Sheets
It defines how the HTML display the elements
CSS can be External style sheets , Internal style sheet, & Inline styles
World Wide Web Consortium (W3C) created CSS.

Work made fast with CSS

CSS defines HOW HTML elements are to be displayed.

Styles are normally saved in external file (ex. mainstyle.css) with .css extension file. External style sheets enable you to change the layout of all the pages in a Web site, just by editing one single file!