title: Turn off volume control and mute button in HTML5 video
body: <p>We have some videos playing great in our HTML mobile app. However, our videos don't have sound, just subtitles, so we need to remove the volume slider and mute button but keep the timer bar. </p>
  
  <p>Can this be done or toggled with HTML or CSS? Or is some javascript required to do this?</p>
  
  <p>At the moment the setting within our html tag is just: <em>controls="controls"</em></p>