Embeds

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

Wrap any embed like an <iframe> in a parent element with and an aspect ratio. The .embed-responsive-item isn’t strictly required, but we encourage it.

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