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column-gap

The column-gap CSS property sets the size of the gap (gutter) between an element's columns.

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Initially a part of Multi-column Layout, the definition of column-gap has been broadened to include multiple layout methods. Now specified in Box Alignment, it may be used in Multi-column, Flexible Box, and Grid layouts.

Note that grid-column-gap is an alias for this property.

Syntax

/* Keyword value */ column-gap: normal; /* <length> values */ column-gap: 3px; column-gap: 2.5em; /* <percentage> value */ column-gap: 3%; /* Global values */ column-gap: inherit; column-gap: initial; column-gap: revert; column-gap: revert-layer; column-gap: unset;

The column-gap property is specified as one of the values listed below.

Values

normal

The browser's default spacing is used between columns. For multi-column layout this is specified as 1em. For all other layout types it is 0.

<length>

The size of the gap between columns, defined as a <length>. The <length> property's value must be non-negative.

<percentage>

The size of the gap between columns, defined as a <percentage>. The <percentage> property's value must be non-negative.

Formal definition

Initial value normal
Applies to multi-column elements, flex containers, grid containers
Inherited no
Percentages refer to corresponding dimension of the content area
Computed value as specified, with <length>s made absolute, and normal computing to zero except on multi-column elements
Animation type a length, percentage or calc();

Formal syntax

column-gap = normal | <length-percentage [0,∞]> <length-percentage> = <length> | <percentage>

Examples

Flex layout

HTML

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

CSS

#flexbox { display: flex; height: 100px; column-gap: 20px; } #flexbox > div { border: 1px solid green; background-color: lime; flex: auto; }

Result

Grid layout

HTML

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

CSS

#grid { display: grid; height: 100px; grid-template-columns: repeat(3, 1fr); grid-template-rows: 100px; column-gap: 20px; } #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 `column-gap` property. Don't you think that's fun and exciting? I sure do! </p>

CSS

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

Result

Specifications

Specification
CSS Box Alignment Module Level 3 # column-row-gap
CSS Grid Layout Module Level 2 # gutters
CSS Multi-column Layout Module Level 1 # column-gap

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
column-gap 1 12 1.5 10 11.1 3 4.4 18 4 11.1 2 1.0
flex_context 84 84 63 No 70 14.1 84 84 63 60 14.5 14.0
grid_context 6657 1616 6152 No 5344 1210.1 6657 6657 6152 4743 1210.3 9.06.0
multicol_context 501 1212 521.5–74Before Firefox 3, the default value for the normal keyword was 0 and not 1em. 10 371511.1–15 103 50≤37 5018 524 371411.1–14 103 5.01.0

See also

  • Related CSS properties: row-gap, gap
  • Grid Layout Guide: Basic concepts of grid layout - Gutters
  • Multi-column Layout Guide: Styling Columns

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