Embedden Youtube

<div style="position:relative; padding-bottom:56.25%; height:0; overflow:hidden;">
  <iframe 
    src="https://www.youtube.com/embed/CODEHERE"
    style="position:absolute; top:0; left:0; width:100%; height:100%; border:0;"
    allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
    allowfullscreen>
  </iframe>
</div>