body {
  background: #111;
  margin: 0;
}

img {
  display: block;
  width: 100%;
}

.scene {
  max-width: 500px;
  margin: 0 auto;
  padding: 0;
}

/*.layer:nth-child(1) {
  opacity: 0.15;
}
.layer:nth-child(2) {
  opacity: 0.30;
}
.layer:nth-child(3) {
  opacity: 0.45;
}
.layer:nth-child(4) {
  opacity: 0.60;
}
.layer:nth-child(5) {
  opacity: 0.75;
}
.layer:nth-child(6) {
  opacity: 0.90;
}*/