.contenedor {
  background-image: url(/images/fondo-ctes.jpg);
  background-repeat: repeat-x;
  background-position: center;
  padding-top: 25%;
}

.fila-botones {
  padding-bottom: 18%;
}

.contenedor-mnes {
  background-image: url(/images/fondo-misiones.jpg);
  background-repeat: repeat-x;
  background-position: center;
  padding-top: 25%;
}

.fila-botones-mnes {
  padding-bottom: 18%;
}
.banner-flash {
  padding-top: 12%;
}
img
{
  border-style: none;
}