https://www.w3.org/TR/CSS22/tables.html#empty-cells

Since Table Layout Level 3 proposes to do away with empty-cells in favor of using :empty, that is also tested here.

< Empty \/
A header row Contained in a thead element
tbody cell 1-1 tbody cell 1-2
tbody cell 2-1 tbody cell 2-2
tbody cell 3-1 tbody cell 3-2
A footer row That lacks a tfoot parent
< Empty \/
A header row Contained in a thead element
tbody cell 1-1 tbody cell 1-2
tbody cell 2-1 tbody cell 2-2
tbody cell 3-1 tbody cell 3-2
A footer row That lacks a tfoot parent
< Empty \/
A header row Contained in a thead element
tbody cell 1-1 tbody cell 1-2
tbody cell 2-1 tbody cell 2-2
tbody cell 3-1 tbody cell 3-2
A footer row That lacks a tfoot parent
< Empty \/
A header row Contained in a thead element
tbody cell 1-1 tbody cell 1-2
tbody cell 2-1 tbody cell 2-2
tbody cell 3-1 tbody cell 3-2
A footer row That lacks a tfoot parent
< Empty \/
A header row Contained in a thead element
tbody cell 1-1 tbody cell 1-2
tbody cell 2-1 tbody cell 2-2
tbody cell 3-1 tbody cell 3-2
A footer row That lacks a tfoot parent