/* Photo viewer is above the pinned site header, at every page scroll position. */
#lightbox {
  position:fixed!important;
  inset:0!important;
  z-index:10020!important;
  margin:0!important;
  border:0;
  width:100%;
  max-width:none;
  overflow:hidden;
  height:100vh;
  height:100dvh;
  max-height:100dvh;
  padding:max(10px,env(safe-area-inset-top)) max(10px,env(safe-area-inset-right)) max(10px,env(safe-area-inset-bottom)) max(10px,env(safe-area-inset-left));
  isolation:isolate;
  overscroll-behavior:contain;
}

#lightbox::backdrop { background:transparent; }