Grid

O leiaute responsivo da grade do Material Design se adapta ao tamanho e orientação da tela, garantindo a consistência entre leiautes.

Uma grade cria consistência visual entre leiautes, enquanto permite flexibilidade em uma ampla variedade de projetos. A UI responsiva do Material Design é baseada em uma grade de 12 colunas.

Como funciona

The grid system is implemented with the Grid component:

Ela usa o módulo CSS de box flexível para alta flexibilidade.
Existem dois tipos de leiautes: contêineres e itens.
Larguras de itens são definidas em porcentagens, desse modo são sempre fluidas e dimensionadas de acordo os seus elementos pai.
Itens têm preenchimento para criar o espaçamento entre itens individuais.
Existem cinco pontos de quebra (breakpoints) na grade: xs, sm, md, lg e xl.
Integer values can be given to each breakpoint, indicating how many of the 12 available columns are occupied by the component when the viewport width satisfies the breakpoint constraints.

If you are new to or unfamiliar with flexbox, we encourage you to read this CSS-Tricks flexbox guide.

Grades fluídas

Fluid grids use columns that scale and resize content. A fluid grid's layout can use breakpoints to determine if the layout needs to change dramatically.

Grade básica

Column widths are integer values between 1 and 12; they apply at any breakpoint and indicate how many columns are occupied by the component.

A value given to a breakpoint applies to all the other breakpoints wider than it (unless overridden, as you can read later in this page). For example, xs={12} sizes a component to occupy the whole viewport width regardless of its size.

xs=8

xs=4

xs=8

<Grid container spacing={2}>
  <Grid item xs={8}>
    <Item>xs=8</Item>
  </Grid>
  <Grid item xs={4}>
    <Item>xs=4</Item>
  </Grid>
  <Grid item xs={4}>
    <Item>xs=4</Item>
  </Grid>
  <Grid item xs={8}>
    <Item>xs=8</Item>
  </Grid>
</Grid>

Grade com pontos de quebra

Components may have multiple widths defined, causing the layout to change at the defined breakpoint. Width values given to larger breakpoints override those given to smaller breakpoints.

For example, xs={12} sm={6} sizes a component to occupy half of the viewport width (6 columns) when viewport width is 600 or more pixels. For smaller viewports, the component fills all 12 available columns.

xs=6 md=8

xs=6 md=4

xs=6 md=8

<Grid container spacing={2}>
  <Grid item xs={6} md={8}>
    <Item>xs=6 md=8</Item>
  </Grid>
  <Grid item xs={6} md={4}>
    <Item>xs=6 md=4</Item>
  </Grid>
  <Grid item xs={6} md={4}>
    <Item>xs=6 md=4</Item>
  </Grid>
  <Grid item xs={6} md={8}>
    <Item>xs=6 md=8</Item>
  </Grid>
</Grid>

Espaçamento

To control space between children, use the spacing prop. The spacing value can be any positive number, including decimals and any string. The prop is converted into a CSS property using the theme.spacing() helper.

Row & column spacing

The rowSpacing and columnSpacing props allow for specifying the row and column gaps independently. It's similar to the row-gap and column-gap properties of CSS Grid.

<Grid container rowSpacing={1} columnSpacing={{ xs: 1, sm: 2, md: 3 }}>
  <Grid item xs={6}>
    <Item>1</Item>
  </Grid>
  <Grid item xs={6}>
    <Item>2</Item>
  </Grid>
  <Grid item xs={6}>
    <Item>3</Item>
  </Grid>
  <Grid item xs={6}>
    <Item>4</Item>
  </Grid>
</Grid>

Valores responsivos

You can switch the props' value based on the active breakpoint. For instance, we can implement the "recommended" responsive layout grid of Material Design.

xs=2

<Grid container spacing={{ xs: 2, md: 3 }} columns={{ xs: 4, sm: 8, md: 12 }}>
  {Array.from(Array(6)).map((_, index) => (
    <Grid item xs={2} sm={4} md={4} key={index}>
      <Item>xs=2</Item>
    </Grid>
  ))}
</Grid>

Responsive values is supported by:

colunas
espaçoDeColuna
direção
espaçoDeLinha
spacing
todas as outras propriedades do sistema other props

⚠️ When using a responsive columns prop, each grid item needs its corresponding breakpoint. For instance, this is not working. The grid item misses the value for md:

<Grid container columns={{ xs: 4, md: 12 }}>
  <Grid item xs={2} />
</Grid>

Interativo

Below is an interactive demo that lets you explore the visual results of the different settings:

Cell 1

Cell 2

Cell 3

<Grid
  container
  direction="row"
  justifyContent="center"
  alignItems="center"
>

Leiaute Automático

The Auto-layout makes the items equitably share the available space. That also means you can set the width of one item and the others will automatically resize around it.

xs=6

<Grid container spacing={3}>
  <Grid item xs>
    <Item>xs</Item>
  </Grid>
  <Grid item xs={6}>
    <Item>xs=6</Item>
  </Grid>
  <Grid item xs>
    <Item>xs</Item>
  </Grid>
</Grid>

Margem negativa

Set one of the size breakpoint props to "auto" instead of true / a number to size a column based on the natural width of its content.

variable width content

xs=6

<Grid container spacing={3}>
  <Grid item xs="auto">
    <Item>variable width content</Item>
  </Grid>
  <Grid item xs={6}>
    <Item>xs=6</Item>
  </Grid>
  <Grid item xs>
    <Item>xs</Item>
  </Grid>
</Grid>

Grade Complexa

The following demo doesn't follow the Material Design guidelines, but illustrates how the grid can be used to build complex layouts.

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Grade Aninhada

The container and item props are two independent booleans; they can be combined to allow a Grid component to be both a flex container and child.

https://www.w3.org/TR/css-flexbox-1/#box-model

Item

<Grid container spacing={1}>
  <Grid container item spacing={3}>
    <FormRow />
  </Grid>
  <Grid container item spacing={3}>
    <FormRow />
  </Grid>
  <Grid container item spacing={3}>
    <FormRow />
  </Grid>
</Grid>

⚠️ Defining an explicit width to a Grid element that is flex container, flex item, and has spacing at the same time lead to unexpected behavior, avoid doing it:

<Grid spacing={1} container item xs={12}>

If you need to do such, remove one of the props.

Colunas

You can change the default number of columns (12) with the columns prop.

xs=8

<Grid container spacing={2} columns={16}>
  <Grid item xs={8}>
    <Item>xs=8</Item>
  </Grid>
  <Grid item xs={8}>
    <Item>xs=8</Item>
  </Grid>
</Grid>

Limitações

Margem negativa

The spacing between items is implemented with a negative margin. This might lead to unexpected behaviors. For instance, to apply a background color, you need to apply display: flex; to the parent.

white-space: nowrap;

The initial setting on flex items is min-width: auto. It's causing a positioning conflict when the children is using white-space: nowrap;. You can experience the issue with:

<Grid item xs>
  <Typography noWrap>

In order for the item to stay within the container you need to set min-width: 0. In practice, you can set the zeroMinWidth prop:

<Grid item xs zeroMinWidth>
  <Typography noWrap>

Truncation should be conditionally applicable on this long line of text as this is a much longer line than what the container can support.

direction: column | column-reverse

The xs, sm, md, lg, and xl props are not supported within direction="column" and direction="column-reverse" containers.

They define the number of grids the component will use for a given breakpoint. They are intended to control width using flex-basis in row containers but they will impact height in column containers. If used, these props may have undesirable effects on the height of the Grid item elements.

Leiaute de Grade CSS

The Grid component is using CSS flexbox internally. But as seen below, you can easily use the system and CSS Grid to layout your pages.

xs=8

xs=4

xs=8

<Box display="grid" gridTemplateColumns="repeat(12, 1fr)" gap={2}>
  <Box gridColumn="span 8">
    <Item>xs=8</Item>
  </Box>
  <Box gridColumn="span 4">
    <Item>xs=4</Item>
  </Box>
  <Box gridColumn="span 4">
    <Item>xs=4</Item>
  </Box>
  <Box gridColumn="span 8">
    <Item>xs=8</Item>
  </Box>
</Box>

System props

As a CSS utility component, the Grid supports all system properties. You can use them as props directly on the component. For instance, a padding:

<Grid item p={2}>

API

<Grid />