# Divider

- Page: https://jiguang132.com/resources/material-ui/docs/dividers
- Resource: Material UI (https://jiguang132.com/resources/material-ui.md)
- All guides: https://jiguang132.com/resources/material-ui/docs.md

Separate adjacent regions without adding navigation or state.

This guide covers Material UI Core with the default Emotion engine; extensions and additional demos are explicitly classified.

## Use case and business boundary

A separator is not a meaningful heading; choose native orientation and semantic role appropriately.

## Native composition and scope

`Divider`

Preserve native Material UI composition and types; do not substitute JGuang UI/Base UI/Radix APIs. Example entries are not extra components.

## Native installation and initialization

```bash
npm install @mui/material@9.4.0 @emotion/react@11.14.0 @emotion/styled@11.14.1
```

Use native npm and Emotion, not an invented JGuang UI Registry URL. Place examples inside native ThemeProvider; choose CssBaseline or ScopedCssBaseline for the project. Inspect React, existing providers, lockfile and SSR first. Never overwrite files or conceal peer conflicts. This batch verified React 19.2.8; React 18 and below require matching react-is. See the included bilingual setup guide.

## Practical native parameters

These selected parameters are not a flattened universal API. Preserve the native declaring owner, slot structure, nullable values and generics.

| Owner.prop | Practical role | Declaration source |
| --- | --- | --- |
| `Divider.orientation` | Native horizontal/vertical orientation, with owner-specific layout behavior. | `Divider` |
| `Divider.variant` | Owning native presentation enum; never substitute a universal variant prop. | `Divider` |
| `Divider.flexItem` | Make Divider stretch correctly as a flex child. | `Divider` |

## Runnable native examples

Machine keys select example entries, not universal variant props. Native demo JSX/data stay unchanged; JGuang-authored acceptance fixtures are explicitly labelled.

- Introduction · `IntroDivider` · upstream native demo
- Variants · `DividerVariants` · upstream native demo
- Orientation · `VerticalDividers` · upstream native demo
- Flex item · `FlexDivider` · upstream native demo
- With children · `DividerText` · upstream native demo
- Use with a List · `ListDividers` · upstream native demo
- Icon grouping · `VerticalDividerMiddle` · upstream native demo

## Actual usage example

Unmodified pinned native demo; copy its required local helper files together.

```tsx
import Card from '@mui/material/Card';
import Box from '@mui/material/Box';
import Chip from '@mui/material/Chip';
import Stack from '@mui/material/Stack';
import Divider from '@mui/material/Divider';
import Typography from '@mui/material/Typography';

export default function IntroDivider() {
  return (
    <Card variant="outlined" sx={{ maxWidth: 360 }}>
      <Box sx={{ p: 2 }}>
        <Stack
          direction="row"
          sx={{ justifyContent: 'space-between', alignItems: 'center' }}
        >
          <Typography gutterBottom variant="h5" component="div">
            Toothbrush
          </Typography>
          <Typography gutterBottom variant="h6" component="div">
            $4.50
          </Typography>
        </Stack>
        <Typography variant="body2" sx={{ color: 'text.secondary' }}>
          Pinstriped cornflower blue cotton blouse takes you on a walk to the park or
          just down the hall.
        </Typography>
      </Box>
      <Divider />
      <Box sx={{ p: 2 }}>
        <Typography gutterBottom variant="body2">
          Select type
        </Typography>
        <Stack direction="row" spacing={1}>
          <Chip color="primary" label="Soft" size="small" />
          <Chip label="Medium" size="small" />
          <Chip label="Hard" size="small" />
        </Stack>
      </Box>
    </Card>
  );
}

```

## Example dependency boundaries

`@mui/material/Card`, `@mui/material/Box`, `@mui/material/Chip`, `@mui/material/Stack`, `@mui/material/Divider`, `@mui/material/Typography`, `@mui/material/List`, `@mui/material/ListItem`, `@mui/material/ListItemText`, `@mui/icons-material/FormatAlignLeft`, `@mui/icons-material/FormatAlignCenter`, `@mui/icons-material/FormatAlignRight`, `@mui/icons-material/FormatBold`, `@mui/icons-material/FormatItalic`, `@mui/material/styles`

Direct Icons/System/Utils example imports require their matching 9.4.0 packages. Relative data/helpers are part of the example closure, not extra components. Remote images and simulated operations do not supply a backend.

## Pinned upstream API metadata reference

These tables retain the upstream metadata, not a newly inferred generic type system. Conditional generics, inherited props and callback details are defined by the source declarations below. Theme defaults may override metadata defaults.

### Divider

```tsx
import Divider from '@mui/material/Divider';
import { Divider } from '@mui/material';
```

| Prop | Required | Upstream metadata type / constraint | Metadata default |
| --- | --- | --- | --- |
| `absolute` | no | `bool` | `false` |
| `children` | no | `node` | — |
| `classes` | no | `object` | — |
| `component` | no | `elementType` | — |
| `flexItem` | no | `bool` | `false` |
| `orientation` | no | `'horizontal' \| 'vertical'` | `'horizontal'` |
| `sx` | no | `Array<func \| object \| bool> \| func \| object` | — |
| `textAlign` | no | `'center' \| 'left' \| 'right'` | `'center'` |
| `variant` | no | `'fullWidth' \| 'inset' \| 'middle' \| string` | `'fullWidth'` |


## Native source declarations

Declarations/imports are extracted from pinned source without flattening unions or external inheritance. Original English comments/types are source reference, not a claim of translated upstream prose. Shared types stay in their native packages.

### vendor/src/Divider/Divider.d.ts

```ts
import * as React from 'react';

import { OverridableStringUnion } from '@mui/types';

import { SxProps } from '@mui/system';

import { Theme } from '../styles';

import { OverridableComponent, OverrideProps } from '../OverridableComponent';

import { DividerClasses } from './dividerClasses';

export interface DividerPropsVariantOverrides {}

export interface DividerOwnProps {
  /**
   * Absolutely position the element.
   * @default false
   */
  absolute?: boolean | undefined;
  /**
   * The content of the component.
   */
  children?: React.ReactNode;
  /**
   * Override or extend the styles applied to the component.
   */
  classes?: Partial<DividerClasses> | undefined;
  /**
   * If `true`, a vertical divider will have the correct height when used in flex container.
   * (By default, a vertical divider will have a calculated height of `0px` if it is the child of a flex container.)
   * @default false
   */
  flexItem?: boolean | undefined;
  /**
   * The component orientation.
   * @default 'horizontal'
   */
  orientation?: 'horizontal' | 'vertical' | undefined;
  /**
   * The system prop that allows defining system overrides as well as additional CSS styles.
   */
  sx?: SxProps<Theme> | undefined;
  /**
   * The text alignment.
   * @default 'center'
   */
  textAlign?: 'center' | 'right' | 'left' | undefined;
  /**
   * The variant to use.
   * @default 'fullWidth'
   */
  variant?:
    | OverridableStringUnion<'fullWidth' | 'inset' | 'middle', DividerPropsVariantOverrides>
    | undefined;
}

export interface DividerTypeMap<
  AdditionalProps = {},
  RootComponent extends React.ElementType = 'hr',
> {
  props: AdditionalProps & DividerOwnProps;
  defaultComponent: RootComponent;
}

declare const Divider: OverridableComponent<DividerTypeMap>;

export type DividerProps<
  RootComponent extends React.ElementType = DividerTypeMap['defaultComponent'],
  AdditionalProps = {},
> = OverrideProps<DividerTypeMap<AdditionalProps, RootComponent>, RootComponent> & {
  component?: React.ElementType | undefined;
};
```

## Post-install acceptance

Run strict types, production build and real interactions. Check keyboard labels/focus, disabled/error/read-only semantics where natively supported, both themes, narrow screens and reduced motion. Verify callbacks against the real host data; do not declare installation complete from copying a prompt. Initialization fixtures also require server HTML and warning-free hydration.

## Source and license

https://github.com/mui/material-ui/tree/809a7717b4c050ba3f69b75300689f07c050a16e

MIT · @mui/material@9.4.0. Vendor originals and license are preserved. Full original upstream prose remains in vendor/docs and is not represented as fully translated.

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