html,
body,
video {
  height: 100%;
}

html {
  background-color: #000000;
}

body {
  margin: 0px;
  overflow: -moz-hidden-unscrollable;
  visibility: hidden;
}

video {
  width: 100%;
  max-height: 100%;
}

div {
  position: absolute;
  top: 0px;
  right: 0px;
  width: 32px;
  height: 32px;
  background: url("chrome://communicator/skin/icons/closeFullScreenVideo.png") center center no-repeat;
}