.mejs-controls {
    /* 
       hide MediaElement.js video control bar area.
       UI buttons are disable by <features> option.
     */
    display: none !important;
}

.mejs-layers {
    /*
      hide MediaElement.js video overlay layer. (ex. play/pause marks)
      */
    display: none !important;
}

video::-webkit-media-controls-enclosure {
  display:none !important;
}