@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document url-prefix(http://www.youtube.com/watch) {

 * {
  font-family:ubuntu !important;
 }
 h1 span {
  font:700 14pt/1.5 ubuntu !important;
 }
 #watch-headline-user-info,
 .subscribe-button,
 #watch-sidebar .watch-module,
 #watch-main-container #watch-main,
 #footer-container {
  display:none !important;
 }
 #watch-video-container {
  position:absolute !important;
  top:7.8em !important;
  bottom:0 !important;
  right:0 !important;
  left:0 !important;
 }
 #watch-video,
 #watch-player,
 .flash-player,
 #watch-player embed[width="640"][id="movie_player"][height="390"] {
  width:100% !important;
  height:100% !important;
 }

}