upload/player/CB_video_js/sccs/components/_adaptive.scss
// When the player is absurdly tiny, display nothing but:
// - Play button
// - Fullscreen Button
.video-js.vjs-layout-tiny:not(.vjs-fullscreen) {
  .vjs-custom-control-spacer { @include flex(auto); }
  &.vjs-no-flex .vjs-custom-control-spacer { width: auto; }

  .vjs-current-time, .vjs-time-divider, .vjs-duration, .vjs-remaining-time,
  .vjs-playback-rate, .vjs-progress-control,
  .vjs-mute-control, .vjs-volume-control, .vjs-volume-menu-button,
  .vjs-chapters-button, .vjs-captions-button, .vjs-subtitles-button { display: none; }
}

// When the player is x-small, display nothing but:
// - Play button
// - Progress bar
// - Fullscreen Button
.video-js.vjs-layout-x-small:not(.vjs-fullscreen) {
  .vjs-current-time, .vjs-time-divider, .vjs-duration, .vjs-remaining-time,
  .vjs-playback-rate,
  .vjs-mute-control, .vjs-volume-control, .vjs-volume-menu-button,
  .vjs-chapters-button, .vjs-captions-button, .vjs-subtitles-button { display: none; }
}


// When the player is small, display nothing but:
// - Play button
// - Progress bar
// - Volume menu button
// - Captions Button
// - Fullscreen button
.video-js.vjs-layout-small:not(.vjs-fullscreen) {
  .vjs-current-time, .vjs-time-divider, .vjs-duration, .vjs-remaining-time,
  .vjs-playback-rate,
  .vjs-mute-control, .vjs-volume-control,
  .vjs-chapters-button, .vjs-captions-button, .vjs-subtitles-button { display: none; }
}
