#spin {
  width: 100%;
  height: 100vh;
}

.spin {
  position: relative;
}

.spin-img {
  width: 100%;
  opacity: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
}

.spin-img.active {
  opacity: 1;
  z-index: 10;
}