<style type="text/css">
    a:link { color: white; text-decoration: none;}
    a:link { color: white; text-decoration: none;}    
    a:hover {color: white; text-decoration: none; background: black;}
    a:visited { color: #996600; text-decoration: none; }
    a.c1:link { color: black; text-decoration: none; }
    a.c1:visited { color: black; text-decoration: none; }
    a.c1:active { color: red; text-decoration: none; }
    a.c1:hover { color: black; text-decoration: none; background: black;}
    a.c2:link { color: black; text-decoration: none; font-weight: bold }
    a.c2:visited { color: black; text-decoration: none; font-weight: bold}
    a.c2:active { color: red; text-decoration: none; }
    a.c2:hover { color: white; text-decoration: none; background: black;}
    a.c3:link { color: black; text-decoration: none; background: white;}
    a.c3:visited { color: black; text-decoration: none; background: #F4A980; }
    a.c3:active { color: red; text-decoration: none; }
    a.c3:hover { color: white; text-decoration: none; background: black;}
    a.c4:link { color: black; text-decoration: none; }
    a.c4:visited { color: black; text-decoration: none; }
    a.c4:active { color: black; text-decoration: none; }
    a.c4:hover { color: white; text-decoration: none; background: black;}
</style>