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AccordionSummary API

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

Component demos


import AccordionSummary from '@mui/material/AccordionSummary';
// or
import { AccordionSummary } from '@mui/material';
Learn about the difference by reading this guide on minimizing bundle size.


Props of the ButtonBase component are also available.


The content of the component.



Override or extend the styles applied to the component.

See CSS API below for more details.



The icon to display as the expand indicator.



This prop can help identify which element has keyboard focus. The class name will be applied when the element gains the focus through keyboard interaction. It's a polyfill for the CSS :focus-visible selector. The rationale for using this feature is explained here. A polyfill can be used to apply a focus-visible class to other components if needed.



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

See the `sx` page for more details.

| object
| bool>
| func
| object

The ref is forwarded to the root element.


While not explicitly documented above, the props of the ButtonBase component are also available in AccordionSummary. You can take advantage of this to target nested components.

Theme default props

You can use MuiAccordionSummary 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.


State class applied to the root element if disabled={true}.


State class applied to the root element, children wrapper element and IconButton component if expanded={true}.


State class applied to the ButtonBase root element if the button is keyboard focused.


Styles applied to the children wrapper element.

Rule name:content


Styles applied to the children wrapper element unless disableGutters={true}.

Rule name:contentGutters


Styles applied to the expandIcon's wrapper element.

Rule name:expandIconWrapper


Styles applied to the root element unless disableGutters={true}.

Rule name:gutters


Styles applied to the root element.

Rule name:root

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