A:link {text-decoration:none;color:#4891d9;}
  A:visited {text-decoration:none;color:#4891d9;}
  A:active {text-decoration:none;color:#4891d9;}
  A:hover {text-decoration:underline;color:#FFCC00;}

  A.clase1:link {text-decoration:none;color:#4891d9;}
  A.clase1:visited {text-decoration:none;color:#4891d9;}
  A.clase1:active {text-decoration:none;color:#4891d9;}
  A.clase1:hover {text-decoration:underline;color:#ffffff;}

  A.clase2:link {text-decoration:none;color:#4891d9;}
  A.clase2:visited {text-decoration:none;color:#4891d9;}
  A.clase2:active {text-decoration:none;color:#4891d9;}
  A.clase2:hover {text-decoration:underline;color:#ffcc00; font-size:12pt;}

  A.clase3:link {text-decoration:none;color:#4891d9;}
  A.clase3:visited {text-decoration:none;color:#003399;}
  A.clase3:active {text-decoration:none;color:#4891d9;}
  A.clase3:hover {text-decoration:underline;color:#FFCC00;}

  A.clase4:link {text-decoration:none;color:#4891d9;}
  A.clase4:visited {text-decoration:none;color:#4891d9;}
  A.clase4:active {text-decoration:none;color:#4891d9;}
  A.clase4:hover {text-decoration:underline;color:#4891d9; font-size:16pt}