inline and block elements with padding and border
[inline, block] * line-height:[normal, 1, 2]
line-height:[normal, 1, 2] * [inline, block]
different font-family (different heights)
inline
block (at least in Moz e Saf, with some fonts, heights are different from inline boxes)
block, line-height: 1.2 (same heights)
block, line-height: 0.5 (same heights)
like the above, but avoids IE7- “cropping”
like the above, with vertical-align:top (only IE5.5-7/Win differs)
like the above, with vertical-align:bottom (only IE5.5-7/Win differs)
Other similar font height tests