CSS Pseudo Classes

Pseudo classes are bolted on to selectors to specify a state or relation to the selector. They take the form of selector:pseudo class { property: value; }, simply with a colon in between the selector and the pseudo class.

Many CSS proposals are not supported by all browsers, but there are four pseudo classes that can be used safely when applied to links.

• link is for an unvisited link.
• visited is for a link to a page that has already been visited.
• active is for a link when it is gains focus (for example, when it is clicked on).
• hover is for a link when the cursor is held over it.

a.snowman:link {
	color: blue;
}

a.snowman:visited {
	color: purple;
}

a.snowman:active {
	color: red;
}

a.snowman:hover {
	text-decoration: none;
	color: blue;
	background-color: yellow;
}