youtube.html

<div class="embed-container">
  <iframe
    width="640"
    height="390"
    src="https://www.youtube.com/embed/{{ include.id }}"
    frameborder="0"
    allowfullscreen
  ></iframe>
</div>
<style>
  .embed-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    max-width: 100%;
  }
  .embed-container iframe,
  .embed-container object,
  .embed-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }
</style>