/* gallery.css */
#preview-container {
  position: fixed;
  display: grid;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.75);
  z-index: 9;
}
#preview-img {
  justify-self: center;
  align-self: center;
  max-width: 90vw;
  max-height: 90vh;
  border: 8px solid #fff;
}
.gallery-thmb {
  transition: opacity ease .2s, width ease .2s, box-shadow ease .2s;
  justify-self: center;
  align-self: center;
  width: 100%;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
}
.gallery-thmb:hover {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  cursor: pointer;
  opacity: 0.5;
  width: 98%;
}