VOID Removes all outside table borders. LHS Displays a border on the left-hand side of the table frame. RHS Displays a border on the right-hand side of the table frame. Displays a border on the left and right sides of the table frame. Displays a border on all sides of the table frame.
NONE Removes all interior table borders.
This is the default. ROWS Displays horizontal borders between all table rows. COLS Displays vertical borders between all table columns. ALL Displays a border on all rows and columns. Specifies the vertical table alignment.