Empty cells testcases: standards mode

This table has huge borders on the empty cells in the middle column:

This table has huge borders on the empty cells in the middle row:

This table has empty cells for the entire middle column and row (with zero cellpadding and cellspacing):

This table has empty cells for the entire middle column and row, and has border, cellspacing, or cellpadding all zero:

This table has empty cells for the entire middle column and row, and has large border, cellspacing, and cellpadding: