AspectRatio API

API reference docs for the React AspectRatio component. Learn about the props, CSS, and other APIs of this exported module.

Component demos

For examples and details on the usage of this React component, visit the component demo pages:

Import

import AspectRatio from '@mui/joy/AspectRatio';
// or
import { AspectRatio } from '@mui/joy';

Learn about the difference by reading this guide on minimizing bundle size.

Props

Props of the native component are also available.

Name	Type	Default	Description
children	node	-	Used to render icon or text elements inside the AspectRatio if `src` is not set. This can be an element, or just a string.
color	'danger' \| 'neutral' \| 'primary' \| 'success' \| 'warning'	'neutral'	The color of the component. It supports those theme colors that make sense for this component. To learn how to add your own colors, check out Themed components—Extend colors.
component	elementType	-	The component used for the root node. Either a string to use a HTML element or a component.
flex	bool	false	By default, the AspectRatio will maintain the aspect ratio of its content. Set this prop to `true` when the container is a flex row and you want the AspectRatio to fill the height of its container.
maxHeight	number \| string	-	The maximum calculated height of the element (not the CSS height).
minHeight	number \| string	-	The minimum calculated height of the element (not the CSS height).
objectFit	'-moz-initial' \| 'contain' \| 'cover' \| 'fill' \| 'inherit' \| 'initial' \| 'none' \| 'revert-layer' \| 'revert' \| 'scale-down' \| 'unset'	'cover'	The CSS object-fit value of the first-child.
ratio	number \| string	'16 / 9'	The aspect-ratio of the element. The current implementation uses padding instead of the CSS aspect-ratio due to browser support. https://caniuse.com/?search=aspect-ratio
slotProps	{ content?: func \| object, root?: func \| object }	{}	The props used for each slot inside.
slots	{ content?: elementType, root?: elementType }	{}	The components used for each slot inside. See Slots API below for more details.
sx	Array<func \| object \| bool> \| func \| object	-	The system prop that allows defining system overrides as well as additional CSS styles. See the `sx` page for more details.
variant	'outlined' \| 'plain' \| 'soft' \| 'solid' \| string	'soft'	The global variant to use. To learn how to add your own variants, check out Themed components—Extend variants.

The ref is forwarded to the root element.

Theme default props

You can use JoyAspectRatio to change the default props of this component with the theme.

Slots

To learn how to customize the slot, check out the Overriding component structure guide.

Slot name	Class name	Default component	Description
root	.MuiAspectRatio-root	`'div'`	The component that renders the root.
content	.MuiAspectRatio-content	`'div'`	The component that renders the content.

CSS classes

These class names are useful for styling with CSS. They are applied to the component's slots when specific states are triggered.

Class name	Rule name	Description
.MuiAspectRatio-colorContext	colorContext	Class name applied to the root element when color inversion is triggered.
.MuiAspectRatio-colorDanger	colorDanger	Class name applied to the content element if `color="danger"`.
.MuiAspectRatio-colorNeutral	colorNeutral	Class name applied to the content element if `color="neutral"`.
.MuiAspectRatio-colorPrimary	colorPrimary	Class name applied to the content element if `color="primary"`.
.MuiAspectRatio-colorSuccess	colorSuccess	Class name applied to the content element if `color="success"`.
.MuiAspectRatio-colorWarning	colorWarning	Class name applied to the content element if `color="warning"`.
.MuiAspectRatio-variantOutlined	variantOutlined	Class name applied to the content element if `variant="outlined"`.
.MuiAspectRatio-variantPlain	variantPlain	Class name applied to the content element if `variant="plain"`.
.MuiAspectRatio-variantSoft	variantSoft	Class name applied to the content element if `variant="soft"`.
.MuiAspectRatio-variantSolid	variantSolid	Class name applied to the content element if `variant="solid"`.

You can override the style of the component using one of these customization options:

With a global class name.
With a rule name as part of the component's styleOverrides property in a custom theme.