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TimelineItem API

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

Component demos


import TimelineItem from '@mui/lab/TimelineItem';
// or
import { TimelineItem } from '@mui/lab';
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.



Override or extend the styles applied to the component.

See CSS API below for more details.



The position where the timeline's item should appear.

| 'alternate'
| 'left'
| 'right'


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.

Theme default props

You can use MuiTimelineItem 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.


Styles applied to the root element if TimelineOppositeContent isn't provided.

Rule name:missingOppositeContent


Styles applied to the root element if position="alternate".

Rule name:positionAlternate


Styles applied to the root element if position="alternate-reverse".

Rule name:positionAlternateReverse


Styles applied to the root element if position="left".

Rule name:positionLeft


Styles applied to the root element if position="right".

Rule name:positionRight


Styles applied to the root element.

Rule name:root

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