docs(utilities): add 'Object fit' page (#2663)

Co-authored-by: Julien Déramond <[email protected]>

site/content/docs/0.0/utilities/object-fit.md

@@ -8,4 +8,58 @@ aliases:
 toc: true
 ---
 
-{{< callout-soon "page" >}}
+## How it works
+
+Change the value of the [`object-fit` property](https://developer.mozilla.org/en-US/docs/Web/CSS/object-fit) with our <!--responsive -->`object-fit` utility classes. This property tells the content to fill the parent container in a variety of ways, such as preserving the aspect ratio or stretching to take up as much space as possible.
+
+Classes for the value of `object-fit` are named using the format `.object-fit-{value}`. Choose from the following values:
+
+- `contain`
+- `cover`
+- `fill`
+- `scale` (for scale-down)
+- `none`
+
+## Examples
+
+Add the `object-fit-{value}` class to the [replaced element](https://developer.mozilla.org/en-US/docs/Web/CSS/Replaced_element):
+
+{{< example class="d-flex overflow-auto" >}}
+{{< placeholder width="140" height="120" class="object-fit-contain border" text="Object fit contain" markup="img" color="#333" background="#bbb" >}}
+{{< placeholder width="140" height="120" class="object-fit-cover border" text="Object fit cover" markup="img" color="#333" background="#bbb" >}}
+{{< placeholder width="140" height="120" class="object-fit-fill border" text="Object fit fill" markup="img" color="#333" background="#bbb" >}}
+{{< placeholder width="140" height="120" class="object-fit-scale border" text="Object fit scale down" markup="img" color="#333" background="#bbb" >}}
+{{< placeholder width="140" height="120" class="object-fit-none border" text="Object fit none" markup="img" color="#333" background="#bbb" >}}
+{{< /example >}}
+
+<!--## Responsive
+
+Responsive variations also exist for each `object-fit` value using the format `.object-fit-{breakpoint}-{value}`, for the following breakpoint abbreviations: `sm`, `md`, `lg`, `xl`, and `xxl`. Classes can be combined for various effects as you need.
+
+{{< example class="d-flex overflow-auto" >}}
+{{< placeholder width="140" height="80" class="object-fit-sm-contain border" text="Contain on sm" markup="img" color="#333" background="#bbb" >}}
+{{< placeholder width="140" height="80" class="object-fit-md-contain border" text="Contain on md" markup="img" color="#333" background="#bbb" >}}
+{{< placeholder width="140" height="80" class="object-fit-lg-contain border" text="Contain on lg" markup="img" color="#333" background="#bbb" >}}
+{{< placeholder width="140" height="80" class="object-fit-xl-contain border" text="Contain on xl" markup="img" color="#333" background="#bbb" >}}
+{{< placeholder width="140" height="80" class="object-fit-xxl-contain border" text="Contain on xxl" markup="img" color="#333" background="#bbb" >}}
+{{< /example >}}-->
+
+## Video
+
+The `.object-fit-{value}` and responsive `.object-fit-{breakpoint}-{value}` utilities also work on `<video>` elements.
+
+```html
+<video src="..." class="object-fit-contain" autoplay></video>
+<video src="..." class="object-fit-cover" autoplay></video>
+<video src="..." class="object-fit-fill" autoplay></video>
+<video src="..." class="object-fit-scale" autoplay></video>
+<video src="..." class="object-fit-none" autoplay></video>
+```
+
+## CSS
+
+### Sass utilities API
+
+Object fit utilities are declared in our utilities API in `scss/_utilities.scss`. [Learn how to use the utilities API.]({{< docsref "/utilities/api#using-the-api" >}})
+
+{{< scss-docs name="utils-object-fit" file="scss/_utilities.scss" >}}

site/data/sidebar.yml

@@ -230,7 +230,6 @@
     - title: Link
       draft: true
     - title: Object fit
-      draft: true
     - title: Opacity
       draft: true
     - title: Overflow