Flex

Flex is Box with display: flex and comes with helpful style shorthand. It renders a div element.

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Import#

import { Flex, Spacer } from "@chakra-ui/react"

Flex: A Box with display: flex.
Spacer: Creates an adjustable, empty space that can be used to tune the spacing between child elements within Flex.

Usage#

Using the Flex components, here are some helpful shorthand props:

flexDirection is direction
flexWrap is wrap
flexBasis is basis
flexGrow is grow
flexShrink is shrink
alignItems is align
justifyContent is justify

While you can pass the verbose props, using the shorthand can save you some time.

<Flex color="white">
  <Center w="100px" bg="green.500">
    <Text>Box 1</Text>
  </Center>
  <Square bg="blue.500" size="150px">
    <Text>Box 2</Text>
  </Square>
  <Box flex="1" bg="tomato">
    <Text>Box 3</Text>
  </Box>
</Flex>

Using the Spacer#

As an alternative to Stack, you can combine Flex and Spacer to create stackable and responsive layouts.

<Flex>
  <Box p="4" bg="red.400">
    Box 1
  </Box>
  <Spacer />
  <Box p="4" bg="green.400">
    Box 2
  </Box>
</Flex>

Flex and Spacer vs Grid vs Stack#

The Flex and Spacer components, Grid and HStack treat children of different widths differently.

In HStack, the children will have equal spacing between them but they won't span the entire width of the container.
In Grid, the starting points of the children will be equally spaced but the gaps between them will not be equal.
With Flex and Spacer, the children will span the entire width of the container and also have equal spacing between them.

<Box>
  <Text>Flex and Spacer: Full width, equal Spacing</Text>
  <Flex>
    <Box w="70px" h="10" bg="red.500" />
    <Spacer />
    <Box w="170px" h="10" bg="red.500" />
    <Spacer />
    <Box w="180px" h="10" bg="red.500" />
  </Flex>
  <Text>
    Grid: The children start at the beginning, the 1/3 mark and 2/3 mark
  </Text>
  <Grid templateColumns="repeat(3, 1fr)" gap={6}>
    <Box w="70px" h="10" bg="blue.500" />
    <Box w="170px" h="10" bg="blue.500" />
    <Box w="180px" h="10" bg="blue.500" />
  </Grid>
  <Text>
    HStack: The children have equal spacing but don't span the whole container
  </Text>
  <HStack spacing="24px">
    <Box w="70px" h="10" bg="teal.500" />
    <Box w="170px" h="10" bg="teal.500" />
    <Box w="180px" h="10" bg="teal.500" />
  </HStack>
</Box>

A good use case for Spacer is to create a navbar with a signup/login button aligned to the right.

<Flex>
  <Box p="2">
    <Heading size="md">Chakra App</Heading>
  </Box>
  <Spacer />
  <Box>
    <Button colorScheme="teal" mr="4">
      Sign Up
    </Button>
    <Button colorScheme="teal">Log in</Button>
  </Box>
</Flex>

Props#

`align`

Description

Shorthand for alignItems style prop

Type

SystemProps["alignItems"]

`basis`

Description

Shorthand for flexBasis style prop

Type

SystemProps["flexBasis"]

`direction`

Description

Shorthand for flexDirection style prop

Type

SystemProps["flexDirection"]

`grow`

Description

Shorthand for flexGrow style prop

Type

SystemProps["flexGrow"]

`justify`

Description

Shorthand for justifyContent style prop

Type

SystemProps["justifyContent"]

`shrink`

Description

Shorthand for flexShrink style prop

Type

SystemProps["flexShrink"]

`wrap`

Description

Shorthand for flexWrap style prop

Type

SystemProps["flexWrap"]

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