Pseudo Classes add features or special effects in your CSS code.
For example:
Style an element when a user mouse is over it
The visited and unvisited links look differently
They have a colon (:) preceding them.
selector:pseudo-class {property:value;}
Pseudo-Classes: :link – Default state for a hyperlink that has not been clicked (visited) :visited – Default state for a visited hyperlink :hover – Triggered when the mouse pointer moves over the hyperlink :active – Triggered when the hyperlink is actually clicked
Click here to see how the pseudo-class is used in creating CSS interactivity for the anchor tag (hyperlinks).