row-gap (grid-row-gap)

The row-gap CSS property sets the size of the gap (gutter) between an element's grid rows.

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Syntax

/* <length> values */
row-gap: 20px;
row-gap: 1em;
row-gap: 3vmin;
row-gap: 0.5cm;

/* <percentage> value */
row-gap: 10%;

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

Values

<length-percentage>

Is the width of the gutter separating the rows. <percentage> values are relative to the dimension of the element.

Formal definition

Formal syntax

normal | <length-percentage>
where 
<length-percentage> = <length> | <percentage>

Examples

Flex layout

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;
  row-gap: 20px;
}

#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>

CSS

#grid {
  grid-row-gap: 20px;
}

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

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

Result

Specifications

Browser compatibility

Support in Flex layout

Support in Grid layout

See also

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