.nav-item a:hover {
  border-bottom: 5px white solid;
}
.nav-item:hover > #branco {
  color: white;
}
#branco {
  color: white;
  font-size: 20px;
  text-transform: uppercase;
}
.ativo {
  background-image: url(../fotos/teste1.png);
  background-size: cover;
  opacity: 0.9;
}