Utilities

Dozens of utility classes with a single purpose designed to reduce the frequency of highly repetitive declarations in your CSS while allowing for quick and easy development.

Embed

Allow browsers to determine embedded media dimensions based on the width of their containing block by creating an intrinsic ratio that will properly scale on any device.

Page Contents

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

Examples

Inline Frames

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

<div class="embed-fluid embed-fluid-16x9">
  <iframe class="embed-fluid-item" src="https://www.youtube.com/embed/MbGkL06EU90?rel=0" allowfullscreen></iframe>
</div>

Video Element

<div class="embed-fluid">
  <video poster="/assets/3.0/video/niagara_falls.jpg" controls>
    <source src="/assets/3.0/video/niagara_falls.mp4">
    <track src="/assets/3.0/video/niagara_falls-en.vtt" label="English" kind="subtitles" srclang="en" default />
  </video>
</div>

Aspect Ratios

By default the aspect ratio is set to 16:9, this can be customized by overriding the $embed-ratio settings variable. Also, the aspect ratios can be customized with the included modifier classes.

<!-- 21:9 aspect ratio -->
<div class="embed-fluid embed-fluid-21x9">
  <iframe class="embed-fluid-item" src="..."></iframe>
</div>

<!-- 16:9 aspect ratio -->
<div class="embed-fluid embed-fluid-16x9">
  <iframe class="embed-fluid-item" src="..."></iframe>
</div>

<!-- 4:3 aspect ratio -->
<div class="embed-fluid embed-fluid-4x3">
  <iframe class="embed-fluid-item" src="..."></iframe>
</div>

<!-- 1:1 aspect ratio -->
<div class="embed-fluid embed-fluid-1x1">
  <iframe class="embed-fluid-item" src="..."></iframe>
</div>