`row-height`constantThe vertical distance between centers of hexagons in successive rows, if the hexagon radius (that is, the distance between the hexagon center and any of its vertices) or, equivalently, the length of the hexagon sides, is 1.

`row-height`constantThe vertical distance between centers of hexagons in successive rows, if the hexagon radius (that is, the distance between the hexagon center and any of its vertices) or, equivalently, the length of the hexagon sides, is 1.