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diff --git a/site/content/docs/4.5/utilities/embed.md b/site/content/docs/4.5/utilities/embed.md new file mode 100644 index 0000000000..860ea19532 --- /dev/null +++ b/site/content/docs/4.5/utilities/embed.md @@ -0,0 +1,60 @@ +--- +layout: docs +title: Embeds +description: Create responsive video or slideshow embeds based on the width of the parent by creating an intrinsic ratio that scales on any device. +group: utilities +toc: true +--- + +## About + +Rules are directly applied to `<iframe>`, `<embed>`, `<video>`, and `<object>` elements; optionally use an explicit descendant class `.embed-responsive-item` when you want to match the styling for other attributes. + +**Pro-Tip!** You don't need to include `frameborder="0"` in your `<iframe>`s as we override that for you. + +## Example + +Wrap any embed like an `<iframe>` in a parent element with `.embed-responsive` and an aspect ratio. The `.embed-responsive-item` isn't strictly required, but we encourage it. + +{{< example >}} +<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> +{{< /example >}} + +## Aspect ratios + +Aspect ratios can be customized with modifier classes. By default the following ratio classes are provided: + +```html +<!-- 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> +``` + +Within `_variables.scss`, you can change the aspect ratios you want to use. Here's an example of the `$embed-responsive-aspect-ratios` list: + +```scss +$embed-responsive-aspect-ratios: ( + (21 9), + (16 9), + (4 3), + (1 1) +) !default; +``` |