<link href="//netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.0/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
<h3 class="text-center">YT video play + sound off</h3>
<div class="video-container">
<!--- video başlangıç -->
<iframe
width="560"
height="315"
src="https://www.youtube.com/embed/nvBUyu5ulVs?autoplay=1&mute=1"
title="YouTube video player"
frameborder="0"
allow="autoplay; encrypted-media"
allowfullscreen>
</iframe>
</div>
</div>
