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gap

The gap CSS property sets the gaps (gutters) between rows and columns. It is a shorthand for row-gap and column-gap.

CSS Grid Layout initially defined the grid-gap property. This prefixed property is being replaced by gap. However, in order to support browsers that implemented grid-gap and not gap for grid, you will need to use the prefixed property as in the interactive example above.

Syntax

/* One <length> value */
gap: 20px;
gap: 1em;
gap: 3vmin;
gap: 0.5cm;

/* One <percentage> value */
gap: 16%;
gap: 100%;

/* Two <length> values */
gap: 20px 10px;
gap: 1em 0.5em;
gap: 3vmin 2vmax;
gap: 0.5cm 2mm;

/* One or two <percentage> values */
gap: 16% 100%;
gap: 21px 82%;

/* calc() values */
gap: calc(10% + 20px);
gap: calc(20px + 10%) calc(10% - 5px);

/* Global values */
gap: inherit;
gap: initial;
gap: unset;

This property is specified as a value for <'row-gap'> followed optionally by a value for <'column-gap'>. If <'column-gap'> is omitted, it’s set to the same value as <'row-gap'>.

<'row-gap'> and <'column-gap'> are each specified as a <length> or a <percentage>.

Values

<length>: Is the width of the gutter separating the grid lines.
<percentage>: Is the width of the gutter separating the grid lines, relative to the dimension of the element.

Formal syntax

<'row-gap'> <'column-gap'>?

Examples

Flex layout

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

HTML

<div id="flexbox">
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
</div>

CSS

#flexbox {
  display: flex;
  flex-wrap: wrap;
  width: 300px;
  gap: 20px 5px;
}

#flexbox > div {
  border: 1px solid green;
  background-color: lime;
  flex: 1 1 auto;
  width: 100px; 
  height: 50px; 

}

Result

Grid layout

HTML

<div id="grid">
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
</div>

CSS

#grid {
  display: grid;
  height: 200px;
  grid-template: repeat(3, 1fr) / repeat(3, 1fr);
  gap: 20px 5px;
}

#grid > div {
  border: 1px solid green;
  background-color: lime;
}

Result

Multi-column layout

HTML

<p class="content-box">
  This is some multi-column text with a 40px column
  gap created with the CSS <code>gap</code> property.
  Don't you think that's fun and exciting? I sure do!
</p>

CSS

.content-box {
  column-count: 3;
  gap: 40px;
}

Result

Specifications

Specification	Status	Comment
CSS Box Alignment Module Level 3 The definition of 'gap' in that specification.	Working Draft	Initial definition

Initial value	as each of the properties of the shorthand: `row-gap`: `normal` `column-gap`: `normal`
Applies to	grid containers
Inherited	no
Media	visual
Computed value	as each of the properties of the shorthand: `row-gap`: as specified, with <length>s made absolute, and normal computing to zero except on multi-column elements `column-gap`: as specified, with <length>s made absolute, and normal computing to zero except on multi-column elements
Animation type	as each of the properties of the shorthand: `row-gap`: a length, percentage or calc(); `column-gap`: a length, percentage or calc();
Canonical order	the unique non-ambiguous order defined by the formal grammar

Browser compatibilityUpdate compatibility data on GitHub Update compatibility data on GitHub Update compatibility data on GitHub

Support in Flex layout

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	?	?	63	No	?	No

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	?	?	No	63	?	No	?

Support in Grid layout

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	66 66 57 Uses the non-standard name: `grid-gap` 29 Disabled Uses the non-standard name: `grid-gap` Disabled From version 29: this feature is behind the `Enable experimental Web Platform features` preference. To change preferences in Chrome, visit chrome://flags.	16 16 16 Uses the non-standard name: `grid-gap`	61 61 52 Uses the non-standard name: `grid-gap` 40 Disabled Uses the non-standard name: `grid-gap` Disabled From version 40: this feature is behind the `layout.css.grid.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	No	53 53 44 Uses the non-standard name: `grid-gap` 28 Disabled Uses the non-standard name: `grid-gap` Disabled From version 28: this feature is behind the `Enable experimental Web Platform features` preference.	10.1 10.1 Uses the non-standard name: `grid-gap`
`<percentage>` values	66	16	52	No	53	No
`calc()` values	66	?	52	No	53	No

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	66 66 57 Uses the non-standard name: `grid-gap`	66 66 57 Uses the non-standard name: `grid-gap` 29 Disabled Uses the non-standard name: `grid-gap` Disabled From version 29: this feature is behind the `Enable experimental Web Platform features` preference. To change preferences in Chrome, visit chrome://flags.	No	61 61 52 Uses the non-standard name: `grid-gap` 40 Disabled Uses the non-standard name: `grid-gap` Disabled From version 40: this feature is behind the `layout.css.grid.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	53 53 44 Uses the non-standard name: `grid-gap`	10.3 10.3 Uses the non-standard name: `grid-gap`	6.0 6.0 Uses the non-standard name: `grid-gap`
`<percentage>` values	66	66	No	52	53	No	No
`calc()` values	66	66	No	52	53	No	No

Support in Multi-column layout

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	66	16	61	No	53	No

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	66	66	?	61	53	No	No

Legend

Full support; No support
Compatibility unknown: Compatibility unknown

gap

Syntax

Values

Formal syntax

Examples

Flex layout

HTML

CSS

Result

Grid layout

HTML

CSS

Result

Multi-column layout

HTML

CSS

Result

Specifications

Browser compatibilityUpdate compatibility data on GitHubUpdate compatibility data on GitHubUpdate compatibility data on GitHub

Support in Flex layout

Support in Grid layout

Support in Multi-column layout

Legend

See also

Browser compatibilityUpdate compatibility data on GitHub Update compatibility data on GitHub Update compatibility data on GitHub