This should be a table because it has a thead.

This should be a table because cells have borders.

This should not be a table because its cells do not have borders.

This should be a table because a cell has a special attribute

This should be a table because a cell has a special attribute.

This should be a table because a cell has a special attribute.

This should be a table because cells have different colors.

This should not be a table because cells have different but no spacing.

This should not be a table because cells have the same colors even though there is spacing.

This should be a table because it has the "rules" attr.

This should not be a table because it only has one valid cell (need more than one).

This should not be a table because it does not have enough cell borders or background colors

This should be a table because it's editable.

This should be a table because most cells have a top border.

This should not be a table because cells have different borders.

This should be a table because it sets empty-cells: hide on the table.

This should be a table because it sets empty-cells: hide on a cell.

This should be a table because it has a col.

This should be a table because it has at least 20 rows

This should be a table even though it uses table-row-group for it's display type.