CSS References
CSS - Reference CSS - Selectors CSS - Functions CSS - Units CSS - Animatable CSS - Entities
All CSS Properties
align-content align-items align-self all animation animation-delay animation-direction animation-duration animation-fill-mode animation-iteration-count animation-name animation-play-state animation-timing-function backface-visibility background background-attachment background-blend-mode background-clip background-color background-image background-origin background-position background-repeat background-size border border-bottom border-bottom-color border-bottom-left-radius border-bottom-right-radius border-bottom-style border-bottom-width border-collapse border-color border-image border-image-outset border-image-repeat border-image-slice border-image-source border-image-width border-left border-left-color border-left-style border-left-width border-radius border-right border-right-color border-right-style border-right-width border-spacing border-style border-top border-top-color border-top-left-radius border-top-right-radius border-top-style border-top-width border-width bottom box-decoration-break box-shadow box-sizing caption-side caret-color @charset clear clip color column-count column-fill column-gap column-rule column-rule-color column-rule-style column-rule-width column-span column-width columns content counter-increment counter-reset cursor direction display empty-cells filter flex flex-basis flex-direction flex-flow flex-grow flex-shrink flex-wrap float font @font-face font-family font-kerning font-size font-size-adjust font-stretch font-style font-variant font-weight grid grid-area grid-auto-columns grid-auto-flow grid-auto-rows grid-column grid-column-end grid-column-gap grid-column-start grid-gap grid-row grid-row-end grid-row-gap grid-row-start grid-template grid-template-areas grid-template-columns grid-template-rows hanging-punctuation height hyphens @import isolation justify-content @keyframes left letter-spacing line-height list-style list-style-image list-style-position list-style-type margin margin-bottom margin-left margin-right margin-top max-height max-width @media min-height min-width mix-blend-mode object-fit object-position opacity order outline outline-color outline-offset outline-style outline-width overflow overflow-x overflow-y padding padding-bottom padding-left padding-right padding-top page-break-after page-break-before page-break-inside perspective perspective-origin pointer-events position quotes resize right tab-size table-layout text-align text-align-last text-decoration text-decoration-color text-decoration-line text-decoration-style text-indent text-justify text-overflow text-shadow text-transform top transform transform-origin transform-style transition transition-delay transition-duration transition-property transition-timing-function unicode-bidi user-select vertical-align visibility white-space width word-break word-spacing word-wrap z-index

CSS grid-auto-columns Property

The grid-auto-columns property specifies the size for the columns in a grid container.

This property affects only columns with the size not set.

CSS Demo: grid-auto-columns

grid-auto-columns: 50px;
grid-auto-columns: 1fr;
grid-auto-columns: 100px;
grid-auto-columns: min-content;
grid-auto-columns: 20%;
1
2
3
4
5
6

The fr unit is used to specify a fraction of available space.

Note: The grid-template-columns property overrides this property.

Technical Details

Default value auto
Applies to grid containers
Inherited no
Computed value as specified
Animatable no See animatable properties.
Version CSS Grid Layout Module Level 1
JavaScript syntax object.style.gridAutoColumns = "1fr" Demo


CSS Syntax:

grid-auto-columns: auto|length|max-content|min-content;

Examples

The following example shows how to use grid-auto-columns property:

Run code

Browser compatibility

The numbers in the table specify the first browser version that fully supports the grid-auto-columns property:

Property
grid-auto-columns 57 52 44 10.1 16

Property Values

The following table describes the values of grid-auto-columns property:

Value Description
auto The size of the columns is determined by the size of the grid container (This is default)
max-content Size of each column depend on the largest item in the column
min-content Size of each column depend on the largest item in the column
length Defines the size of the columns See length units

See also

CSS Grid Layout tutorial

CSS grid property

CSS grid-area property

CSS grid-template-areas property

CSS grid-template-rows property

CSS grid-template-columns property

CSS grid-auto-rows property

CSS grid-auto-flow property

CSS grid-row-gap property

CSS grid-column-gap property