<p>Allow browsers to determine video or slideshow dimensions based on the width of their containing block by creating an intrinsic ratio that will properly scale on any device.</p>
<p>Rules are directly applied to <code><iframe></code>, <code><embed></code>, and <code><object></code> elements; optionally use an explicit descendant class <code>.embed-responsive-item</code> when you want to match the styling for other attributes.</p>
<p><strong>Pro-Tip!</strong> You don't need to include <code>frameborder="0"</code> in your <code><iframe></code>s as we override that for you.</p>
