http://stovoxeobzeebmcgomjymnk73vcarxkikwo26lvfbaxmxbtjbe7umnid.onion/questions/491052/minimum-and-maximum-value-of-z-index
So basically there are no limitations for z-index value in the CSS standard, but I guess most browsers limit it to signed 32-bit values (−2147483648 to +2147483647) in practice (64 would be a little off the top, and it doesn't make sense to use anything less than 32 bits these days) Answered Jan 29, 2009 at 10:11 by Mkkt Bkkt 188 Votes My tests show that z-index: 2147483647 is the maximum value, tested on FF 3.0.1 for OS X.
I discovered a integer overflow bug: if you type z-index:...