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An official website of the United States government

Here's how you know

An official website of the United States government

Here's how you know

Theme:

Design system switcher

Version:

Design system switcher

Theme:

Design system switcher

Version:

Design system switcher

Spacing

The design system uses multiples of 8px for all spacing values: dimensions, padding, and margins. The goal behind this is to achieve a consistent vertical rhythm and to reduce the cognitive load of fiddling with different spacing options.

Usage

  • Use the margin and padding utility classes to change a UI's spacing. These utility classes are named in a way that allows you to use the modifier to calculate the amount of spacing. For example, a margin utility class that adds 16px of spacing would be ds-u-margin--2. We can calculate this by looking at the class's modifier (2) and multiplying that by our multiple: 2 × 8px = 16px
  • If you've imported the design system's CSS file, you can also use the spacer CSS variables, which follow the format --spacer-* where * is a number between 1–7 (i.e. --spacer-4)

Learn more

VariableValueExample
--spacer-half4px
--spacer-18px
--spacer-216px
--spacer-324px
--spacer-432px
--spacer-540px
--spacer-648px
--spacer-756px