>>6875214I don't really have an issue when I use the CSS you linked.
Just to be sure, I'd try the urlbar-wrapper thing but just test the margin-top. Somewhere between -1px and maybe -5px could work.
If that doesn't work there are a couple things you can try.
Change the top margin for #navbar to a negative value and/or setting the bottom-margin to -1 or 0 instead of -2px.
I'd adjust the #urlbar margins accordingly (if they are out of place).