CSS (Cascading Style Sheets)

CSS is a programming language that we use to "style" a web page. It allows web designers to style, format, and lay out web pages and the content on them.

Some common ways that we use CSS to style websites include:

  • Changing colors of text and backgrounds on a web page
  • Changing the typeface of headlines or body copy in a web page
  • Adding decorative imagery, such as icons or patterns, to help highlight important information
  • Setting the width of text and images on a web page

CSS only handles styling, which is different from content, functionality, and interactivity. When you need to add any of these other items to a web page, you'll need to use a different tool.

Learn more from MDN Web Docs on CSS.