How are frameworks (like Bootstrap) *limiting*?

Question

I understand how they could benefit a developer, but how does it limit you? If you need something not provided by a framework can't you just build on top of it yourself with additional CSS?

Answer 1

A framework like Bootstrap takes care of a lot of the nitty gritty details that come with development. In doing this, they make a lot of choices for you. Things like amount of columns and column margin size are already decided for you. You don't do it yourself so you don't learn how the insides operate. That's problematic if you decide you want to change something around.