The grid-row-start CSS property specifies a grid item’s start position within the grid row by contributing a line, a span, or nothing (automatic) to its grid placement, thereby specifying the inline-start edge of its grid area.

Initial value auto
Applies to grid items and absolutely-positioned boxes whose containing block is a grid container


grid-row-start: 3;


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.
If there is a named line with the name '-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-row-start: foo; will choose the start edge of that named grid area (unless another line named foo-start was explicitly specified before it). Otherwise, this is treated as if the integer 1 had been specified along with the .
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 , 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 value of 0 is invalid.

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