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Stack API

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



import Stack from '@mui/system/Stack';
// or
import { Stack } from '@mui/system';

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


Props of the native component are also available.


The content of the component.


The component used for the root node. Either a string to use a HTML element or a component.

| 'column'
| 'row-reverse'
| 'row'
| Array<'column-reverse'
| 'column'
| 'row-reverse'
| 'row'>
| object

Defines the flex-direction style property. It is applied for all screen sizes.


Add an element between each child.

| string>
| number
| object
| string

Defines the space between immediate children.

| object
| bool>
| func
| object

The system prop, which allows defining system overrides as well as additional CSS styles.

See the `sx` page for more details.


If true, the CSS flexbox gap is used instead of applying margin to children.
While CSS gap removes the known limitations, it is not fully supported in some browsers. We recommend checking before using this flag.
To enable this flag globally, follow the theme's default props configuration.

As a CSS utility, the Stack component also supports all system properties. You can use them as props directly on the component.

The ref is forwarded to the root element.

Theme default props

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

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 nameRule nameDescription
.MuiStack-rootrootStyles applied to the root element.

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