External Styling and Selectors Advanced users of CSS rarely add their styling to an individual page. Instead, veteran users deploy CSS through an external .css file that each page refers to as needed.

Inline vs external styles Furthermore, all HTML5 tags have a style property that one can use to override any style information defined at either the page style level or in an external style sheet.

How does CSS work? CSS is a language that is used to style HTML documents. This language can be used to create both simple and complex websites.