title: Html/Bootstrap : how to crop a video (reduction of its height)
body: <p>I use the following template : <a href="http://mamoot-themes.com/theme-preview/z-theme-1-2/home-video-bg.html" rel="nofollow">http://mamoot-themes.com/theme-preview/z-theme-1-2/home-video-bg.html</a></p>
  
  <p>I would like to reduce the height of the video (cropping of the video in height ; preservation of the aspect ratio of the remaining visible area of the video)</p>
  
  <p>How can I do?</p>
  
  <p>Thanks !</p>