body {
	background-image: url('DESKTOP.jpg');
	background-repeat: no-repeat;
  	background-size: contain;
  	background-attachment: fixed;
	background-position: center center;
	background-color: #000000;
}

img {
  width: 100%;
  height: 95vh;
}

@media (max-width: 767px){
  body {
	   background-image: url('MOVIL.jpg');
       background-position: center;
  }
}