Name Type Default Description
classes object Override or extend the styles applied to the component. See CSS API below for more details.
invisible bool false If true, the backdrop is invisible. It can be used when rendering a popover or a custom select component.
openĀ * bool If true, the backdrop is open.
transitionDuration union: number |
 {enter?: number, exit?: number}
The duration for the transition, in milliseconds. You may specify a single timeout for all transitions, or individually with an object.

Any other properties supplied will be spread to the root element.


You can override all the class names injected by Material-UI thanks to the classes property. This property accepts the following keys:

  • root
  • invisible

Have a look at overriding with classes section and the implementation of the component for more detail.

If using the overrides key of the theme as documented here, you need to use the following style sheet name: MuiBackdrop.