Grid area

grid-area

Use this property to define the element's four edges with respect to the grid system.

Definitions

Refer to these definitions to better understand how the property values are used.

Grid lines

Each reference to a grid line refers to the imaginary line on either side of grid cells.

For a layouts with N rows, there are N+1 horizontal grid lines — one at the top, one between each row, and one at the bottom.

For a layouts with M columns, there are M+1 vertical grid lines — one at the left edge, one between each column, and one at the right edge.

Grid lines are numbered starting at 1. For rows, the topmost line is 1 and the bottommost line is N+1. For columns, the leftmost line is 1 and the rightmost line is M+1. *

* Arabic, Hebrew and other left-to-right writing systems, reverse everything.
Grid line aliases

For clarity and ease of use, each grid line can be aliased with an arbitrary name. That alias can be used with grid-row-start, grid-row-end, grid-column-start and grid-column-end property values.

Grid line aliases are defined when specifying grid-template-rows, grid-template-columns, and grid-template-areas.

In addition, when a grid line alias is declared by the user within a grid-template-areas definition, the browser implicitly defines two other names that can be used in those start/end properties. For example, if a grid-template-areas defines an area named foo:

generated name property interpretation
'foo-start' grid-row-start The topmost line of the area
'foo-start' grid-column-start The leftmost line of the area
'foo-end' grid-row-end The bottommost line of the area
'foo-end' grid-column-end The rightmost line of the area

Property values

Specify the four grid lines that form the boundaries of this element. Use grid line numbers or aliases for each, separating them with solidus "/".

1st value Corresponds with the property grid-row-start
2nd value Corresponds with the property grid-column-start
3rd value Corresponds with the property grid-row-end
4th value Corresponds with the property grid-column-end

For example, this element is placed within topmost, leftmost cell of the container.

grid-area: 1 / 1 / 2 / 2;
grid-area using grid line values

Alternatively, specify an alias name declared in the container's grid-template-areas property. For example:

grid-area: hdr;
An element that is placed within the hdr aliased name

style > grid > grid-areaGrid area

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