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31 lines
1.2 KiB
Markdown
31 lines
1.2 KiB
Markdown
---
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layout: page
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title: Responsive embed
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---
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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.
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Rules are directly applied to `<iframe>`, `<embed>`, and `<object>` elements; optionally use an explicit descendant class `.embed-responsive-item` when you want to match the styling for other attributes.
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**Pro-Tip!** You don't need to include `frameborder="0"` in your `<iframe>`s as we override that for you.
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{% example html %}
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<div class="embed-responsive embed-responsive-16by9">
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<iframe class="embed-responsive-item" src="//www.youtube.com/embed/zpOULjyy-n8?rel=0" allowfullscreen></iframe>
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</div>
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{% endexample %}
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Aspect ratios can be customized. There are two available in Bootstrap, 16x9 and 4x3 (two of the most common for video).
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{% highlight html %}
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<!-- 16:9 aspect ratio -->
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<div class="embed-responsive embed-responsive-16by9">
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<iframe class="embed-responsive-item" src="…"></iframe>
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</div>
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<!-- 4:3 aspect ratio -->
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<div class="embed-responsive embed-responsive-4by3">
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<iframe class="embed-responsive-item" src="…"></iframe>
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</div>
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{% endhighlight %}
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