I've submitted bug report to Opera's bug tracking system. BS-12308
Let's see what they'll say

@rejuvenator Thanks for advice, maybe I'll try it in the near future

Hello!
I have the same problems for very long time on several machines on Xubuntu 18.04.
Current Opera release I use is 76.0.4017.154, but problem appeared somewhere on 65-67 I think. Neither Firefox nor Chromuim is affected.

Here is screenshot in two variations: original and with black outline to make problem more clear:

Please help, this line is so annoying

I've submitted bug report to Opera's bug tracking system. BS-12308
Let's see what they'll say

@rejuvenator Thanks for advice, maybe I'll try it in the near future

Hello!
I have the same problems for very long time on several machines on Xubuntu 18.04.
Current Opera release I use is 76.0.4017.154, but problem appeared somewhere on 65-67 I think. Neither Firefox nor Chromuim is affected.

Here is screenshot in two variations: original and with black outline to make problem more clear:

Please help, this line is so annoying