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- Grid lines
- The vertical and horizontal lines that divide the grid and separate the columns and rows. Start counting at 1, not 0.
- Grid cell
- A single child or unit of a CSS grid.
- Grid area
- Any rectangular space surrounded by four grid lines. Can contain any number of grid cells.
- Grid track
- The space between two grid lines. This space can be horizontal or vertical: a grid row or grid column
- Grid row
- A horizontal grid track.
- Grid column
- A vertical grid track.
- Gutter or Gap
- Space between two rows and two columns.