If I interviewed anything but a junior candidate and they said this I&#x27;d immediately dismiss them. Sure, flexbox can solve most of the problems, but flexbox isn&#x27;t always an option. Any candidate worth their grain of salt would know this regardless of whether or not they knew exactly how clearfixes work. I&#x27;d much rather them tell me they knew the purpose, but didn&#x27;t exactly know how they worked than immediately dismiss it.