Embeds

Create responsive video or slideshow embeds based on the width of the parent by creating an intrinsic ratio that scales on any device.

About

Rules are directly applied to <iframe>, <embed>, <video>, and <object>elements; optionally use an explicit descendant class .embed-responsive-itemwhen you want to match the styling for other attributes.

Pro tip! You don't need to include frameborder="0"in yours <iframe>as we override that for you.

example

Wrap any embed like an <iframe>in a parent element with .embed-responsiveand an aspect ratio. The .embed-responsive-itemisn't strictly required, but we encourage it.

<div class="embed-responsive embed-responsive-16by9">
  <iframe class="embed-responsive-item" src="https://www.youtube.com/embed/zpOULjyy-n8?rel=0" allowfullscreen></iframe>
</div>

Aspect ratios

Aspect ratios can be customized with modifier classes. By default the following ratio classes are provided:

<!-- 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>

Within _variables.scss, you can change the aspect ratios you want to use. Here's an example of the $embed-responsive-aspect-ratioslist:

$embed-responsive-aspect-ratios: (
  (21 9),
  (16 9),
  (3 4),
  (1 1)
) !default;