I choose framework

Then you are not a designer. Nothing wrong with that. But slapping bootstrap just ain't the same as being able to roll your own stuff.

Prefer Foundation 5, though I can't use that one anymore since security requirements require a later version of jQuery than it is written for. Foundation 6 has been a bit of a pain because it took everything I liked about 5 and "improved" it.

Bootstrap is good, but I'm still a vanilla guy at heart.

@AleCx04 yes, its better to hardcode than use frameworks because it contains large files sometimes

@Unirises er...no that is not the reason why you would go by hardcoding your own stylesheets. But it can certainly be one of them!

and what is Bootstrap other than CSS in the first place?