Math the pseudo class A$.$ :link B$.$ :visited C$.$ :focus D$.$ :hover E$.$ :active F$.$:return to the effect when applied $1.$ default state link that has been clicked $2.$ triggered when the hyperlink has keyboard focus $3.$ triggered when the hyperlink is actually clicked $4.$ triggered when the mouse moved over a hyperlink $5.$ This is not a pseudo class $6.$ default state for links that have not been clicked.