#demo-7 {
  position: absolute;
  top: 0px;
  left: 0px;
  height: 100%;
  width: 100%;
  overflow: hidden;
  opacity: 0;

  -webkit-transition:	.3s ease;
  -moz-transition:		.3s ease;
  -ms-transition:			.3s ease;
  -o-transition:			.3s ease;
  transition:					.3s ease;
  
}

#demo-7.ready {
  opacity: 1;
}

#demo-7 #scene {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

#demo-7 #scene .cover {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

#demo-7 img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}