a:hover {  text-decoration: underline; color: #CC6666}
botao {  font-weight: bold; color: #FFFFFF; background-color: #003366}
.azul_escuro {  color: #003366; text-decoration: none}
.preto {  color: #000000; text-decoration: none}
.vermelho {  color: #990000; text-decoration: none}