a:link { color:#000080; text-decoration: none;}
a:visited { color:#003399; text-decoration: none;} 
a:hover { text-decoration: overline underline;}

a.b:link { color:#000080; text-decoration: none;}
a.b:visited { color:#003399; text-decoration: none;} 
a.b:hover { color: #ff0000; text-decoration:overline underline;}

a.c:link { color:#000080; text-decoration: none;}
a.c:visited { color:#000080; text-decoration: none;} 
a.c:hover { color: #ff0000; text-decoration: underline;}

a.d:link { color:#000000; text-decoration: none;}
a.d:visited { color:#000000; text-decoration: none;} 
a.d:hover { color: #000000; text-decoration: none;}