I have a project that its multi-language. i can add or change every style with use Custom CSS in Editor Page. but this change to overall page with all of languages. i dont know that how i change css for Language A and other Change for Language B.
for example: i want change color the title in English Language to blue and change it to Spanish Language to red
I don't have the exact solution but I think you would need to write PHP code snippet/event that would analyze the current selected language and would include one or another CSS file based on that info.