#progress {
  height: 1px;
  background: #808080;
  position: absolute;
  top: 49%;
  width: 20%;
  left: 40%;    
  opacity: 1;
  z-index: 3;
  transition: width 0.1s ease;
  display: none;
  opacity: 0;
}

#progress_under {
  height: 1px;
  background: #303030;
  position: absolute;
  top: 49%;
  width: 20%;
  left: 40%;    
  opacity: 1;
  z-index: 2;
}

#gallery {
  opacity: 0;
  display: grid;
  width: 100%;
  grid-template-columns: repeat(2, 25%);
  grid-gap: 5em;
  height: 0vh;
  justify-content: center;
  align-content: center;
  transform: scale(0.8);
}

.fadeIn {
  transform: scale(1) !important;
  opacity: 1 !important;
  transition: all 1s 1.15s;
}

.fadeOut {
  opacity: 0 !important;
  transition: opacity 0.5s !important;
}