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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
Summary
The grid-column-start
CSS property specifies a grid item’s start position within the grid column by contributing a line, a span, or nothing (automatic) to its grid placement, thereby specifying the block-start edge of its grid area.
Initial value | auto |
---|---|
Applies to | grid items and absolutely-positioned boxes whose containing block is a grid container |
Inherited | no |
Media | visual |
Computed value | as specified |
Animation type | discrete |
Canonical order | the unique non-ambiguous order defined by the formal grammar |
Syntax
/* Keyword value */ grid-column-start: auto; /* <custom-ident> value */ grid-column-start: somegridarea; /* <integer> + <custom-ident> values */ grid-column-start: 2; grid-column-start: somegridarea 4; /* span + <integer> + <custom-ident> values */ grid-column-start: span 3; grid-column-start: span somegridarea; grid-column-start: 5 somegridarea span; /* Global values */ grid-column-start: inherit; grid-column-start: initial; grid-column-start: unset;
Values
auto
- Is a keyword indicating that the property contributes nothing to the grid item’s placement, indicating auto-placement, an automatic span, or a default span of
1
. <custom-ident>
- If there is a named line with the name '<custom-ident>-start', it contributes the first such line to the grid item’s placement.
Note: Named grid areas automatically generate implicit named lines of this form, so specifying
grid-column-start: foo;
will choose the start edge of that named grid area (unless another line namedfoo-start
was explicitly specified before it).Otherwise, this is treated as if the integer
1
had been specified along with the<custom-ident>
. <integer> && <custom-ident>?
- Contributes the nth grid line to the grid item’s placement. If a negative integer is given, it instead counts in reverse, starting from the end edge of the explicit grid.
If a name is given as a <custom-ident>, only lines with that name are counted. If not enough lines with that name exist, all implicit grid lines are assumed to have that name for the purpose of finding this position.
An
<integer>
value of0
is invalid. span && [ <integer> || <custom-ident> ]
- Contributes a grid span to the grid item’s placement, such that the column start edge of the grid item’s grid area is n lines from the end edge.
If a name is given as a <custom-ident>, only lines with that name are counted. If not enough lines with that name exist, all implicit grid lines on the side of the explicit grid corresponding to the search direction are assumed to have that name for the purpose of counting this span.
If the <integer> is omitted, it defaults to
1
. Negative integers or 0 are invalid.The
<custom-ident>
cannot take thespan
value.
Formal syntax
<grid-line>where
<grid-line> = auto | <custom-ident> | [ <integer> && <custom-ident>? ] | [ span && [ <integer> || <custom-ident> ] ]
Example
HTML Content
<div id="grid"> <div id="item1"></div> <div id="item2"></div> <div id="item3"></div> </div>
CSS Content
#grid { display: grid; height: 100px; grid-template: repeat(4, 1fr) / 100px; } #item1 { background-color: lime; grid-column-start: span 2; } #item2 { background-color: yellow; } #item3 { background-color: blue; }
Specifications
Specification | Status | Comment |
---|---|---|
CSS Grid Layout The definition of 'grid-column-start' in that specification. |
Candidate Recommendation | Initial definition |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Edge | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 29.0[1] | 40.0 (40.0)[2] | 10.0-ms[3] | 20-ms[3] | 28.0[1] | Nightly build-webkit |
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | No support | No support | 10.0-ms[3] | No support | No support |
[1] Implemented behind the experimental Web Platform features flag in chrome://flags
.
[2] Implemented behind the preference layout.css.grid.enabled
, defaulting to false
.
[3] Internet Explorer implements an older version of the specification, which only defines a grid-cell
and a grid-column-span
property and is using the -ms prefix. Therefore part of the property is implemented there as -ms-grid-cell
and -ms-grid-column-span
, respectively.
See also
- Related CSS properties:
grid-column-end
,grid-column
,grid-row-start
,grid-row-end
,grid-row