.overlay_ios {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  z-index: 999;
}

.overlay_ios img {
  position: absolute;
  opacity: 0.9;
  top: 8%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 100%;
  max-height: 90%;
}