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150 lines
26 KiB
Markdown
150 lines
26 KiB
Markdown
# Properties
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<p class="description">This API page lists all the custom MUI System properties, how they are linked with the theme, and which CSS properties they compute.</p>
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While this page documents the custom properties, MUI System was designed to be a superset of CSS, so all other regular CSS properties and selectors are supported too.
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## Properties reference table
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Note that this table only lists custom properties. All other regular CSS properties and selectors are supported too. You can check out the [legend](/system/properties/#legend) below.
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| System key(s) | CSS property/properties | System style function | Theme mapping |
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| :-------------------- | :------------------------------------------------------------------------------------------- | :----------------------------------------------------------- | :-------------------------------------------------------------------------------------------------- |
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| `border` | `border` | [`border`](/system/borders/#border) | `${value}px solid` |
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| `borderBottom` | `border-bottom` | [`borderBottom`](/system/borders/#border) | `${value}px solid` |
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| `borderColor` | `border-color` | [`borderColor`](/system/borders/#border-color) | [`theme.palette[value]`](/material-ui/customization/default-theme/?expand-path=$.palette) |
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| `borderLeft` | `border-left` | [`borderLeft`](/system/borders/#border) | `${value}px solid` |
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| `borderRadius` | `border-radius` | [`borderRadius`](/system/borders/#border-radius) | [`theme.shape.borderRadius * value`](/material-ui/customization/default-theme/?expand-path=$.shape) |
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| `borderRight` | `border-right` | [`borderRight`](/system/borders/#border) | `${value}px solid` |
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| `borderTop` | `border-top` | [`borderTop`](/system/borders/#border) | `${value}px solid` |
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| `boxShadow` | `box-shadow` | [`boxShadow`](/system/shadows/) | `theme.shadows[value]` |
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| `displayPrint` | `display` | [`displayPrint`](/system/display/#display-in-print) | none |
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| `display` | `display` | [`displayRaw`](/system/display/) | none |
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| `alignContent` | `align-content` | [`alignContent`](/system/flexbox/#align-content) | none |
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| `alignItems` | `align-items` | [`alignItems`](/system/flexbox/#align-items) | none |
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| `alignSelf` | `align-self` | [`alignSelf`](/system/flexbox/#align-self) | none |
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| `flex` | `flex` | [`flex`](/system/flexbox/) | none |
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| `flexDirection` | `flex-direction` | [`flexDirection`](/system/flexbox/#flex-direction) | none |
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| `flexGrow` | `flex-grow` | [`flexGrow`](/system/flexbox/#flex-grow) | none |
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| `flexShrink` | `flex-shrink` | [`flexShrink`](/system/flexbox/#flex-shrink) | none |
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| `flexWrap` | `flex-wrap` | [`flexWrap`](/system/flexbox/#flex-wrap) | none |
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| `justifyContent` | `justify-content` | [`justifyContent`](/system/flexbox/#justify-content) | none |
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| `order` | `order` | [`order`](/system/flexbox/#order) | none |
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| `gap` | `gap` | [`gap`](/system/grid/#gap) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `columnGap` | `column-gap` | [`columnGap`](/system/grid/#row-gap-amp-column-gap) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `rowGap` | `row-gap` | [`rowGap`](/system/grid/#row-gap-amp-column-gap) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `gridColumn` | `grid-column` | [`gridColumn`](/system/grid/#grid-column) | none |
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| `gridRow` | `grid-row` | [`gridRow`](/system/grid/#grid-row) | none |
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| `gridAutoFlow` | `grid-auto-flow` | [`gridAutoFlow`](/system/grid/#grid-auto-flow) | none |
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| `gridAutoColumns` | `grid-auto-columns` | [`gridAutoColumns`](/system/grid/#grid-auto-columns) | none |
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| `gridAutoRows` | `grid-auto-rows` | [`gridAutoRows`](/system/grid/#grid-auto-rows) | none |
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| `gridTemplateColumns` | `grid-template-columns` | [`gridTemplateColumns`](/system/grid/#grid-template-columns) | none |
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| `gridTemplateRows` | `grid-template-rows` | [`gridTemplateRows`](/system/grid/#grid-template-rows) | none |
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| `gridTemplateAreas` | `grid-template-areas` | [`gridTemplateAreas`](/system/grid/#grid-template-areas) | none |
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| `gridArea` | `grid-area` | [`gridArea`](/system/grid/#grid-area) | none |
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| `bgcolor` | `background-color` | [`bgcolor`](/system/palette/#background-color) | [`theme.palette[value]`](/material-ui/customization/default-theme/?expand-path=$.palette) |
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| `color` | `color` | [`color`](/system/palette/#color) | [`theme.palette[value]`](/material-ui/customization/default-theme/?expand-path=$.palette) |
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| `bottom` | `bottom` | [`bottom`](/system/positions/) | none |
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| `left` | `left` | [`left`](/system/positions/) | none |
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| `position` | `position` | [`position`](/system/positions/) | none |
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| `right` | `right` | [`right`](/system/positions/) | none |
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| `top` | `top` | [`top`](/system/positions/) | none |
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| `zIndex` | `z-index` | [`zIndex`](/system/positions/#z-index) | [`theme.zIndex[value]`](/material-ui/customization/default-theme/?expand-path=$.zIndex) |
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| `height` | `height` | [`height`](/system/sizing/#height) | none |
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| `maxHeight` | `max-height` | [`maxHeight`](/system/sizing/) | none |
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| `maxWidth` | `max-width` | [`maxWidth`](/system/sizing/) | none |
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| `minHeight` | `min-height` | [`minHeight`](/system/sizing/) | none |
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| `minWidth` | `min-width` | [`minWidth`](/system/sizing/) | none |
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| `width` | `width` | [`width`](/system/sizing/#width) | none |
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| `boxSizing` | `box-sizing` | [`boxSizing`](/system/sizing/) | none |
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| `m`, `margin` | `margin` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `mb`, `marginBottom` | `margin-bottom` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `ml`, `marginLeft` | `margin-left` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `mr`, `marginRight` | `margin-right` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `mt`, `marginTop` | `margin-top` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `mx`, `marginX` | `margin-left`, `margin-right` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `my`, `marginY` | `margin-top`, `margin-bottom` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `marginInline` | `margin-inline` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `marginInlineStart` | `margin-inline-start` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `marginInlineEnd` | `margin-inline-end` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `marginBlock` | `margin-block` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `marginBlockStart` | `margin-block-start` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `marginBlockEnd` | `margin-block-end` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `p`, `padding` | `padding` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `pb`, `paddingBottom` | `padding-bottom` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `pl`, `paddingLeft` | `padding-left` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `pr`, `paddingRight` | `padding-right` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `pt`, `paddingTop` | `padding-top` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `px`, `paddingX` | `padding-left`, `padding-right` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `py`, `paddingY` | `padding-top`, `padding-bottom` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `paddingInline` | `padding-inline` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `paddingInlineStart` | `padding-inline-start` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `paddingInlineEnd` | `padding-inline-end` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `paddingBlock` | `padding-block` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `paddingBlockStart` | `padding-block-start` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `paddingBlockEnd` | `padding-block-end` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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| `typography` | `font-family`, `font-weight`, `font-size`, `line-height`, `letter-spacing`, `text-transform` | [`typography`](/system/typography/#variant) | [`theme.typography[value]`](/material-ui/customization/default-theme/?expand-path=$.typography) |
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| `fontFamily` | `font-family` | [`fontFamily`](/system/typography/#font-family) | [`theme.typography[value]`](/material-ui/customization/default-theme/?expand-path=$.typography) |
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| `fontSize` | `font-size` | [`fontSize`](/system/typography/#font-size) | [`theme.typography[value]`](/material-ui/customization/default-theme/?expand-path=$.typography) |
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| `fontStyle` | `font-style` | [`fontStyle`](/system/typography/#font-style) | [`theme.typography[value]`](/material-ui/customization/default-theme/?expand-path=$.typography) |
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| `fontWeight` | `font-weight` | [`fontWeight`](/system/typography/#font-weight) | [`theme.typography[value]`](/material-ui/customization/default-theme/?expand-path=$.typography) |
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| `letterSpacing` | `letter-spacing` | [`letterSpacing`](/system/typography/#letter-spacing) | [`theme.typography[value]`](/material-ui/customization/default-theme/?expand-path=$.typography) |
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| `lineHeight` | `line-height` | [`lineHeight`](/system/typography/#line-height) | [`theme.typography[value]`](/material-ui/customization/default-theme/?expand-path=$.typography) |
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| `textAlign` | `text-align` | [`textAlign`](/system/typography/#text-alignment) | none |
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## Legend
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Let's take one row from [the table above](#properties-reference-table), for example:
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| System key(s) | CSS property/properties | System style function | Theme mapping |
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| :------------------- | :---------------------- | :---------------------------- | :---------------------------------------------------------------------------------------- |
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| `mb`, `marginBottom` | `margin-bottom` | [`spacing`](/system/spacing/) | [`theme.spacing(value)`](/material-ui/customization/default-theme/?expand-path=$.spacing) |
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<br />
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and detail each column:
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- **System keys**.
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The column lists the key(s) by which you can use this property with the `sx` prop (or as a system function).
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```jsx
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<Button sx={{ mb: 3 }}>
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// or
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<Box mb={3}>
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// or
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<Box marginBottom={3}>
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```
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- **CSS properties**.
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The column describes which CSS property will be generated when this system property is used.
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```css
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.my-class {
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margin-bottom: Xpx;
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}
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```
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- **System style function**.
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The column lists the function which generates the properties shown in the other columns, as a reference in case you want to add this functionality to your custom components. The functions can be imported from `@mui/system`.
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You can see an example of using the style functions on the [Custom components page](/system/getting-started/custom-components/#using-standalone-system-utilities). The content links to the documentation page where this properties are described; in this example, the [spacing](/system/spacing/) page.
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- **Theme mapping**.
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Lastly, the column tells you how this property is wired with the theme – with this example, whatever value you provide will be used as input to the `theme.spacing` helper.
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Let's take a look at an example:
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```jsx
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<Button sx={{ mb: 3 }} />
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// is equivalent to
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<Button sx={{ marginBottom: theme => theme.spacing(3)}} />
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```
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As the default theme spacing is 8px, this will result in the following CSS class:
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```css
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.my-class {
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margin-bottom: 24px;
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}
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```
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