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empty-cell

The empty-cell property defines whether the borders around empty cells are shown or hidden if you use separate rather than collapsed borders.

A cell is empty if the visibility property is set to hidden or if the cell contains things like a carriage return, spaces, or tabs rather than text for pictures.

If you set empty-cell property to show, the borders around the cell appear as normal. If you set the property to hide, the browser does not draw the border around the cell.