> Build every part of the application then suddenly "Oh Right! CSS!" Slap bootstrap or other popular framework then don't think about it. It depends on the pro

> Build every part of the application then suddenly "Oh Right! CSS!" Slap bootstrap or other popular framework then don't think about it. It depends on the problem your trying to solve, if you just want something that looks decent (because you're a programmer and you don't notice things like colors, alignment and spacing) then something like bootstrap is a good go-to. I still think learning CSS properly is worth it, using bootstrap without knowing CSS is like using an ORM without knowing SQL, but less dangerous.