#demo-6 {
  opacity: 0;
  -webkit-transition:	.3s ease;
  -moz-transition:		.3s ease;
  -ms-transition:			.3s ease;
  -o-transition:			.3s ease;
  transition:					.3s ease;
}

#demo-6 .spiral_container {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  will-change: transform;
  width: 100vw;
  height: 100%;
}

#demo-6 .spiral_item {
  position: absolute;
  overflow: scroll;
  will-change: transform;
}

#demo-6 .spiral_item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#demo-6 .spiral_item:nth-child(even) {
  background-color: var(--green);
  color: white;
}