JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<body class="home">
	<!-- Fixed navbar -->
	<div class="navbar navbar-inverse navbar-fixed-top headroom" >
		<div class="container">
			<div class="navbar-header">
				<!-- Button for smallest screens -->
				<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse"><span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button>
				<a class="navbar-brand" href="index.php"><img src="assets/images/vLogo.png" alt="Test"></a>
			</div>
			<div class="navbar-collapse collapse">
				<ul class="nav navbar-nav pull-right">
					<li class="active"><a href="#">Home</a></li>
				</ul>
			</div><!--/.nav-collapse -->
		</div>
	</div> 


	<!-- Intro -->
	<div class="container-fluid text-center" style="padding-top:100px;">
		<div class="row" >
			<div class="col-md-6 " style="background-color:#000;">
				 <video  id="video_id" width="100%" height="100%" controls="controls"  align="middle" >
         			<source src="http://www.w3schools.com/html/mov_bbb.mp4" type="video/ogg">
       				 Your browser does not support the video tag.
   				 </video>
			</div>
			<div class="col-md-6 vcenter" style="background-color:#999;">
				 <img  id ="detected_face_id" src="http://www.w3schools.com/html/pic_mountain.jpg" width="100%" height="100%"> </img>
			</div>
		</div>

	</div>
	<!-- /Intro-->
		
	

	<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
	<script src="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
	<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"></script>
	<script...

CSS

.row {
  display: flex;
}
.row .col-md-6 {
  flex: 1 1 auto;
  align-self: center
}