# Bootstrap 5 Object Fit

> Use the object fit utilities to modify how the content of a [replaced element](https://developer.mozilla.org/en-US/docs/Web/CSS/Replaced_element), such as an `<img>` or `<video>`, should be resized to fit its container.

## 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):

## 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.

## 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.](https://coreui.io/bootstrap/docs/utilities/api/#using-the-api)

```scss
"object-fit": (
  responsive: true,
  property: object-fit,
  values: (
    contain: contain,
    cover: cover,
    fill: fill,
    scale: scale-down,
    none: none,
  )
),
```