It happens quite a lot, in general, that some bugs simply don't get the kind of attention they deserve. For example, non-Firefox browsers supported relative pos

It happens quite a lot, in general, that some bugs simply don't get the kind of attention they deserve. For example, non-Firefox browsers supported relative positioning of table cells in 2000 or so, which is useful for interactive table rearrangement, and Firefox held fast to not supporting it, citing complications around backgrounds [1], even causing the standard to temporarily change (which they then cite in the bug). List-style-position is still broken [2]. There are plenty more, in all the browsers. [1] https://bugzilla.mozilla.org/show_bug.cgi?id=35168 https://bugzilla.mozilla.org/show_bug.cgi?id=35168 [2] https://bugzilla.mozilla.org/show_bug.cgi?id=36854 https://bugzilla.mozilla.org/show_bug.cgi?id=36854