I'm unable to make use of -moz-column-width as I'd like. (With Firefox.)
When I edit a post and put <div style="-moz-column-width> at the beginning, every column is exactly the same height, give or take a single line for required formatting. But when I do it by applying the same CSS to BODY Box, the right-most column is never the same height as the others, sometimes even being completely blank while there are 5+ lines of text in the other columns.
Looking at the source for a rendered page, I'm unable to tell what could be causing this discrepancy...