Embed

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

It can be applied to <iframe>, <embed>, <video>, and <object> elements. When you want to match the styling for other attributes use an descendant class .embed-responsive-item.

Note

You don't need to include frameborder="0" in your <iframe>.

In a parent element wrap any embed like an <iframe> with .embed-responsive and an aspect ratio. You must add .embed-responsive-item to iframe.

<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 .embed-responsive-21by9, .embed-responsive-16by9, .embed-responsive-4by3 and .embed-responsive-1by1.

<!-- 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>