How to determine the framework by class names and css ID?

Question

css

Do class names and css IDs start with "b-"? What framework was used?

Answer 1

I was in "A" class. What school did I go to?

Answer 2

The BEM methodology or something similar was used. It has nothing to do with frameworks at all.

Answer 3

You can try to figure out frameworks by specific url, file storage locations, resources, cookies, error pages. Layout often has nothing to do with it.