.img.photo .photo-inner {
  width: 100%;
  height: auto;
}

.img.photo .photo img {
  width: 100%;
  height: 100%;
}

.curtain {
  position: relative;
  overflow: hidden;
}

.curtain::before {
  content: '';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  background: #fff;
  transform: translateX(-100%);
}

@keyframes showMask {
  0% {
    transform: translateX(-100%);
  }
  45%, 50% {
    transform: translate(0%);
  }
  100% {
    transform: translateX(100%);
  }
}

.curtain.show::before {
  animation: showMask 1s forwards;
}

.curtain .photo-inner {
  opacity: 0;
}

@keyframes showElements {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

.curtain.show .photo-inner {
  animation: showElements 0.01s 0.6s forwards;
}