Tekniske vejledninger

<!-- 21:9 aspect ratio -->

<div class="embed-responsive embed-responsive-21by9">

  <iframe class="embed-responsive-item" src="..."></iframe>

</div>

<!-- 16:9 aspect ratio -->

<div class="embed-responsive embed-responsive-16by9">

  <iframe class="embed-responsive-item" src="..."></iframe>

</div>

<!-- 4:3 aspect ratio -->

<div class="embed-responsive embed-responsive-4by3">

  <iframe class="embed-responsive-item" src="..."></iframe>

</div>

<!-- 1:1 aspect ratio -->

<div class="embed-responsive embed-responsive-1by1">

  <iframe class="embed-responsive-item" src="..."></iframe>

</div>