Can I use this article as an example for writing correct BEM class naming?

Question

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Here is a link to an article on habré: https://habrahabr.ru/post/203440/
I watched a lot of videos and read articles, but when it came to practice, I fell into a stupor and began to doubt how to name classes in different cases

Answer 1

The article is correct, here are the necessary clarifications: Nesting elements in elements and other subtleties .