a label to remove the default style

/ * Includes the following four kinds of link * /  A {  text-Decoration: none;} / * Link not been accessed normal * / A: Link { text-Decoration: none;} / * already visited link * / a: visited { text-Decoration: none;} / * link across mouse (residence) of * / a: hover { text-Decoration: none;} / * is clicked on a link * / a: Active { text-Decoration : none;}