Reported by fantasai.
17.5.3 (Table height algorithms) [http://www.w3.org/TR/CSS21/tables.html#height-layout] says:
# The height of a 'table-row' element's box is calculated once the user agent
# has all the cells in the row available: it is the maximum of the row's
# computed 'height', the computed 'height' of each cell in the row, and the
# minimum height (MIN) required by the cells. A 'height' value of 'auto' for a
# 'table-row' means the row height used for layout is MIN.
This means that 'height' on the cells is ignored in the case that 'height' on the row is 'auto'. Is this what is wanted?