<div class="zcs_slider_col youtube-slider">
  <div class="youtube-video-wrapper">
    <iframe 
      width="100%" 
      height="200" 
      src="https://www.youtube.com/embed/?autoplay=1&mute=1&loop=1&playlist=YOUR_VIDEO_ID" 
      title="YouTube video player" 
      frameborder="0" 
      allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" 
      allowfullscreen>
    </iframe>
  </div>
</div>