But you don’t need to use it, and your sites can still look good without it. How Do CSS and HTML Work Together? If you ...

This definition explains the meaning of CSS (cascading style sheets) and how using them with HTML pages is a user interface (UI) development best practice that complies with the separation of concerns ...

In the last example, the first paragraph was assigned a unique id and the related style was applied using the CSS # selector. In this example, paragraphs two and three make use of a class known as ...