Prueba
<div class=»embed-responsive»><iframe class=»embed-responsive-item» width=»560″ height=»315″ src=»https://www.youtube.com/embed/4jCWYOTk87g?si=9MztQbVsbySzr3MI» title=»YouTube video player» frameborder=»0″ allow=»accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share» referrerpolicy=»strict-origin-when-cross-origin» allowfullscreen></iframe></div>
