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Collapse API

The API documentation of the Collapse React component. Learn more about the props and the CSS customization points.


import Collapse from '@material-ui/core/Collapse';
// or
import { Collapse } from '@material-ui/core';

You can learn more about the difference by reading this guide.

The Collapse transition is used by the Vertical Stepper StepContent component. It uses react-transition-group internally.


Name Type Default Description
children node The content node to be collapsed.
classes object Override or extend the styles applied to the component. See CSS API below for more details.
collapsedHeight string '0px' The height of the container when collapsed.
component elementType 'div' The component used for the root node. Either a string to use a DOM element or a component.
in bool If true, the component will transition in.
timeout number
| { enter?: number, exit?: number }
| 'auto'
duration.standard The duration for the transition, in milliseconds. You may specify a single timeout for all transitions, or individually with an object.
Set to 'auto' to automatically calculate transition time based on height.

The ref is forwarded to the root element.

Any other props supplied will be provided to the root element (Transition).


  • Style sheet name: MuiCollapse.
  • Style sheet details:
Rule name Global class Description
container MuiCollapse-container Styles applied to the container element.
entered MuiCollapse-entered Styles applied to the container element when the transition has entered.
hidden MuiCollapse-hidden Styles applied to the container element when the transition has exited and collapsedHeight != 0px.
wrapper MuiCollapse-wrapper Styles applied to the outer wrapper element.
wrapperInner MuiCollapse-wrapperInner Styles applied to the inner wrapper element.

You can override the style of the component thanks to one of these customization points:

If that's not sufficient, you can check the implementation of the component for more detail.


The props of the Transition component, from react-transition-group, are also available. You can take advantage of this behavior to target nested components.