vlink:
Defines the visited link color of the document. This attribute changes the color when a link has been clicked on to tell the readers they've already seen the page that link goes to.
Deprecated in favor of the color property and the :visited pseudo-class.
Used with Elements:
Content:
color: either a named color or a hexadecimal code
Default:
Not required
Deprecated in XHTML 1.0:
Yes
DTD:
XHTML 1.0 Loose
