⬇ Grid lines are the horizontal and vertical dividing lines of the grid.

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CSS Grid Layout

New Terminology

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Grid Track (Column) A grid track is the space between two adjacent grid lines, forming a grid column or grid row.

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Grid Area A grid area consists of one or more adjecent grid cells. It is bound by four grid lines, one on each side of the grid area.

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Grid Cell A grid cell is the smallest unit of the grid. A grid cell is the intersection of a grid row and a grid column.

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Grid Track (Row) A grid track is the space between two adjacent grid lines, forming a grid column or grid row.