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Description

To make it easier to build application layout and form-views in line with defined design sketches, there are a number of components for layout.

  • Spacing table and information.

  • Media Queries and breakpoints table and information.

  • Flex is a building block for CSS flexbox based layout of contents, components and forms.

  • Grid is a layout system for CSS grid based layout of contents.

  • Space is a component that provides margins within the provided spacing patterns.

Deprecated layout components

Units and responsiveness

Please – use rem instead of px for all of your custom CSS, and make sure;

  • you always use the nearest half rem value, like 0.5rem, 1rem or 1.5rem and so forth.
  • you always get a total computed height within the grid.

This results in maintaining the integrity of the 8px base grid.

Exceptions

There are exceptions for when you define a "minimum" of an area, such as min-width. Because it will increase in size when a larger browser font-size is used. In that case, user px as your sizing unit.

Smaller Units

Sometimes you may need a compensation of only a few pixels. Heres how to calculate the correct rem values:

  • 1px = 1/16x1 = 0.0625rem
  • 2px = 1/16x2 = 0.125rem
  • And so on ...

Columns

UX designers are using a 12 column system, along with a 4 and 6 column system, during their design processes.

What are the differences between Flex and Grid?

Both to support different sizing of items on different media breakpoints.

Flex

Uses CSS flexbox.

  • Best suited for Forms layout.
  • Can either stack vertically or horizontally.
  • Can be used with any kind of children.
  • Even distribution of space.
  • Keeps order of items like they were given in the DOM structure.
  • Items can be sized in percentage.
  • When a size (percentage) is given, they stack horizontally.
import { Flex } from '@dnb/eufemia'
render(
  <Flex.Container>
    <Flex.Item>content</Flex.Item>
    <OtherComponent>content</OtherComponent>
  </Flex.Container>,
)

Grid

Uses CSS grid.

  • Best suited for applications with a column based layout.
  • Columns do change between 4, 6 and 12 on the given size (media query) of the browser or screen size.
  • The Grid.Container depends on Grid.Item.
  • Items do span from column "a" to "b".
  • Items can have different order in opposition from what's given in the DOM structure.
import { Grid } from '@dnb/eufemia'


render(
  <Grid.Container>
    <Grid.Item>content</Grid.Item>
    <Grid.Item>content</Grid.Item>
  </Grid.Container>,
)

Demos

Responsive application Grid usage

Item A
Item B
Item C
Item D

Responsive Flex usage

With the default sizeCount of 12 parts.

FlexItem (8)
FlexItem (4)
FlexItem (small: 8, medium: 4)
FlexItem (small: 4, medium: 8)

Customized Flex.Item sizes

With a custom amount of 4 parts (sizeCount) as well as custom breakpoints and media queries.

Error: Unexpected token when processing JSX children.

Flex usage in Forms

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