a:link    { color: black; text-decoration: none; }
a:visited { color: black; text-decoration: none; }
a:active  { color: black; text-decoration: none; }
a:hover   { color: blue;  text-decoration: underline; }

a.rev:link    { color: white; text-decoration: none; }
a.rev:visited { color: white; text-decoration: none; }
a.rev:active  { color: white; text-decoration: none; }
a.rev:hover   { color: blue;  text-decoration: underline; }