.vjs-control-bar{
  background-color: black !important;
}

.video-js .vjs-control-bar,
.video-js .vjs-big-play-button,
.video-js .vjs-menu-button .vjs-menu-content {
  /* IE8 - has no alpha support */
  background-color: red;
  /* Opacity: 1.0 = 100%, 0.0 = 0% */
  background-color: rgba(red, 0.7);
}

.vjs-control{
  z-index:9999;
}