row-gap property specifies a fixed-length gutter between rows in a container, adding space between them.
It specifies spacing between rows, separating boxes in the containerâ€™s block axis.
You can specify the row gap to be either
normal or to be a specific size (for example, a value of
30px would create a row gap of 30 pixels).
row-gap property is similar to
column-gap, except that
row-gap currently only applies to flexbox and grid containers (
column-gap applies to multi-column containers in addition to flexbox and grid containers).
The exact handling of
row-gap depends on the type of layout container.
- On flex containers, when applied to the cross axis (e.g. in a
rowflex container), indicates minimum spacing between adjacent flex lines.
- On grid containers, it defines the gutters between grid rows. It works the same as
grid-row-gapbefore it was repurposed to be an alias for
Here's an example of
row-gap being used on a flex container.
Here's an example of
row-gap being used on a grid container (this is the same example that's displayed at the top of this article).
Specifies the width of the gap. For example,
40pxwould create a row gap of 40 pixels. Cannot be a negative value.
- Represents a used value of
In addition, all CSS properties also accept the following CSS-wide keyword values as the sole component of their property value:
- Represents the value specified as the property's initial value.
- Represents the computed value of the property on the element's parent.
- This value acts as either
initial, depending on whether the property is inherited or not. In other words, it sets all properties to their parent value if they are inheritable or to their initial value if not inheritable.
Basic Property Information
- Initial Value
- Applies To
- Multi-column containers, flex containers, grid containers.
- Yes, by computed value type (see example)
The CSS Grid Layout module was originally written with its own set of gutter properties (
grid-row-gap). Those properties were later unified into the
gap naming, which also expanded the scope to include flexbox containers, grid containers and multi-column containers.
For compatibility purposes, those
grid-* property names are now aliases for the properties with the new names.
grid-column-gapis an alias for
grid-row-gapis an alias for
grid-gapis an alias for
For maximum browser compatibility many web developers add browser-specific properties by using extensions such as
-webkit- for Safari, Google Chrome, and Opera (newer versions),
-ms- for Internet Explorer,
-moz- for Firefox,
-o- for older versions of Opera etc. As with any CSS property, if a browser doesn't support a proprietary extension, it will simply ignore it.
This practice is not recommended by the W3C, however in many cases, the only way you can test a property is to include the CSS extension that is compatible with your browser.
The major browser manufacturers generally strive to adhere to the W3C specifications, and when they support a non-prefixed property, they typically remove the prefixed version. Also, W3C advises vendors to remove their prefixes for properties that reach Candidate Recommendation status.
Many developers use Autoprefixer, which is a postprocessor for CSS. Autoprefixer automatically adds vendor prefixes to your CSS so that you don't need to. It also removes old, unnecessary prefixes from your CSS.
You can also use Autoprefixer with preprocessors such as Less and Sass.