Which browsers do not support Cyrillic style classes?

Question

css

Greetings
I set the name of the class rule in Cyrillic and it works!?

<style>
    .мойкласс{color: red;}
</style>

I would like to clarify with connoisseurs: do all browsers support the work of style rules whose classes are assigned in Cyrillic and what possible technical negative consequences can you safely prepare for, of course, with the exception of the dissatisfied exclamations of third parties who received the code to work with it?

Answer 1

and it works!?

So you can use. The main thing is to keep track of file encodings, especially those that are generated automatically, otherwise everything will break.
PS: You can write your own yopta-bootstrap for yoptascript people :)

Answer 2

In my yard, for such a pen they let you go in the ribs (c)

Answer 3

All such names (including variables in js) can be written in Unicode, and there will be no problems.
Because everything is Unicode.
21st century in the yard.
But harsh professionals can give in the face, or say something offensive.
Because in the professional world of web development, everything must be called in English. But this is only because of the global need to hire employees from all countries, for example, Indians or Russians, everyone should work in one standard framework ™. That is, this is a purely globalist chip. If you are a simple amateur, a patriot and for import substitution and an iron curtain from the English-speaking world, then feel free to write in Russian - I will personally thank you, because it is easier to read the code.