How do I draw a horizontal line on a grid? See the picture enter image description here
As you see, the black line is a bit higher than the grid line. When I move the black line a bit lower, it overshoots the grid.
All my settings are default.
The problem happens on every second line of a grid.

1 Answer 1


That line is actually a shape, not a connector. Use the line from General instead

The general library section of draw.io opened with the line connector hovered over

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