.fondoimg{
    background: url("assets/img/fondo.jpg");
    background-color: rgba(0, 0, 0, 0);
    background-position-x: 0%;
    background-position-y: 0%;
    background-size: auto;
  background-color: rgba(0, 0, 0, 0);
  background-size: cover;
  background-position: center center;
  height: 100%;
  width: 100%;
}