:active
Expression Studio 3.0
Sets the style of the A element when the link is engaged or active.
The default value of the :active pseudo-class is browser-specific.
Active means that the user is navigating the link. The link has been activated, and some action is being performed but is not yet complete.
The :active pseudo-class is often used in conjunction with :hover, :link, and :visited, the pseudo-classes that affect the other states of a link.
This pseudo-class is defined in Cascading Style Sheets (CSS), Level 1 (CSS1).