my_tests/assets/css/justifiedGallery.min.css

/*!
 * justifiedGallery - v3.8.0
 * http://miromannino.github.io/Justified-Gallery/
 * Copyright (c) 2020 Miro Mannino
 * Licensed under the MIT license.
 */
.justified-gallery {
  width: 100%;
  position: relative;
  overflow: hidden;
}
.justified-gallery > a,
.justified-gallery > div,
.justified-gallery > figure {
  position: absolute;
  display: inline-block;
  overflow: hidden;
  /* background: #888888; To have gray placeholders while the gallery is loading with waitThumbnailsLoad = false */
  filter: "alpha(opacity=10)";
  opacity: 0.1;
  margin: 0;
  padding: 0;
}
.justified-gallery > a > img,
.justified-gallery > div > img,
.justified-gallery > figure > img,
.justified-gallery > a > a > img,
.justified-gallery > div > a > img,
.justified-gallery > figure > a > img,
.justified-gallery > a > svg,
.justified-gallery > div > svg,
.justified-gallery > figure > svg,
.justified-gallery > a > a > svg,
.justified-gallery > div > a > svg,
.justified-gallery > figure > a > svg {
  position: absolute;
  top: 50%;
  left: 50%;
  margin: 0;
  padding: 0;
  border: none;
  filter: "alpha(opacity=0)";
  opacity: 0;
}
.justified-gallery > a > .jg-caption,
.justified-gallery > div > .jg-caption,
.justified-gallery > figure > .jg-caption {
  display: none;
  position: absolute;
  bottom: 0;
  padding: 5px;
  background-color: #000000;
  left: 0;
  right: 0;
  margin: 0;
  color: white;
  font-size: 12px;
  font-weight: 300;
  font-family: sans-serif;
}
.justified-gallery > a > .jg-caption.jg-caption-visible,
.justified-gallery > div > .jg-caption.jg-caption-visible,
.justified-gallery > figure > .jg-caption.jg-caption-visible {
  display: initial;
  filter: "alpha(opacity=70)";
  opacity: 0.7;
  -webkit-transition: opacity 500ms ease-in;
  -moz-transition: opacity 500ms ease-in;
  -o-transition: opacity 500ms ease-in;
  transition: opacity 500ms ease-in;
}
.justified-gallery > .jg-entry-visible {
  filter: "alpha(opacity=100)";
  opacity: 1;
  background: none;
}
.justified-gallery > .jg-entry-visible > img,
.justified-gallery > .jg-entry-visible > a > img,
.justified-gallery > .jg-entry-visible > svg,
.justified-gallery > .jg-entry-visible > a > svg {
  filter: "alpha(opacity=100)";
  opacity: 1;
  -webkit-transition: opacity 500ms ease-in;
  -moz-transition: opacity 500ms ease-in;
  -o-transition: opacity 500ms ease-in;
  transition: opacity 500ms ease-in;
}
.justified-gallery > .jg-filtered {
  display: none;
}
.justified-gallery > .jg-spinner {
  position: absolute;
  bottom: 0;
  margin-left: -24px;
  padding: 10px 0 10px 0;
  left: 50%;
  filter: "alpha(opacity=100)";
  opacity: 1;
  overflow: initial;
}
.justified-gallery > .jg-spinner > span {
  display: inline-block;
  filter: "alpha(opacity=0)";
  opacity: 0;
  width: 8px;
  height: 8px;
  margin: 0 4px 0 4px;
  background-color: #000;
  border-radius: 6px;
}