/* Independent of where the Messenger mounts itself during fullscreen. */
html[data-pg-game-fullscreen="1"] #pg-messenger,
html[data-pg-game-fullscreen="1"] #pgm-picker[data-msg-owner="messenger"],
html[data-pg-game-fullscreen="1"] #pgm-viewer[data-msg-owner="messenger"] {
  display: none !important;
}