Pseudo Classes in Cascading Stylesheets

There are four "class" properties that are designated as a special "pseudo-class".

Pseudo classes are denoted with a colon in front as opposed to a period (.) in class declarations. These classes are link, visited, active and hover.

:link - Hypertext element that is targeted by using an <a href="#"> tag.

:visited - Hypertext element that targets and has already been visited.

:active - Hypertext element that is active (pressing on the link).

:hover - The mouse or pointer is 'hovering' on top of the element.

An example of these psuedo-classes in noted below: