2.1.130 Part 4 Section 2.4.18, insideH (Table Cell Inside Horizontal Edges Border)

For additional notes that apply to this portion of the standard, please see the notes for bar, §; bdr, §; left, §

a.   The standard states that if the table has cell spacing then inside horizontal borders are displayed.

In Word, when a table has cell spacing, the appearance of the insideH border is still subject to the conflict resolution algorithm defined by the tcBorders and tblBorders elements.