I have the below code for responsive YouTube video but it does not display at all. When I remove the classes, the video displays but its width is very short. Here is the site that hosts it.
<div class="embed-responsive embed-responsive-16by9">
<iframe class="embed-responsive-item" src="<?php echo get_field( "youtube_video" );?>" frameborder="0" allowfullscreen></iframe>
<div class="more-videos">
<button type="button" class="btn btn-warning">View More Videos From Matt</button>
</div>
</div>
HTML as displayed on the site,
<div class="row">
<div class="embed-responsive embed-responsive-16by9">
<iframe class="embed-responsive-item" src="http://www.youtube.com/v/lQ2EZdkLCfc&version=3&loop=1&playlist=gq_zxxutiok,GEuouxgqa3Q,iwiXhnjlRuw" frameborder="0" allowfullscreen></iframe>
<div class="more-videos">
<button type="button" class="btn btn-warning">View More Videos From Matt</button>
</div>
</div>
</div>