Can be fixed by removing these two directives
Please check of course if it breaks something else. I couldnt find anything but then I did not run an entire test suite 
CSS glitch with firewall "is (not) in" rules
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Appears to be a case of tested-with-Chrome-only 
as it only happens on Firefox.
And it only breaks off the last character. I saw another screenshot from you (Country names?) where each one had the last letter moved to the next line, regardless of string length.
I guess you are referring to How to Allow Bots Search Engine on Page Rules? Please hlep!. It happens in all cases with the mentioned operators.
It makes me think it’s a CSS padding issue. It allocates slightly too little space for the characters.
True, could be that as well. I just noticed it gets fixed by disabling the two mentioned directives, but maybe there is a cleaner approach.
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for the issue 
Fixed it seems.
Thanks!
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