<div class="b-embed">
    <iframe src="https://www.youtube.com/embed/jPEYpryMp2s?rel=0&amp;showinfo=0" allowfullscreen></iframe>
</div>
<div class="b-embed{{ modifier }}">
    <iframe src="https://www.youtube.com/embed/jPEYpryMp2s?rel=0&amp;showinfo=0" allowfullscreen></iframe>
</div>
{
  "name": null,
  "modifier": null,
  "title": null
}

There is no default for this component, you have to supply a modifier. Modifiers will give the component height, also making it responsive.