And have negative margins? No thanks. Bourbon and neat were better tools for this, but these days I just write it by hand. Flex box and css grid are supported well enough to not need this anymore anyway. I've used bootstrap mixins from sass for media queries in the past, but was unhappy with the lack of flexibility. Building at responsive (instead of adaptive), every design calls for breakpoints at different queries. As widely used as bootstrap is, css is used by nearly all websites and if developers can't support it that's on them ;)
And have negative margins? No thanks. Bourbon and neat were better tools for this, but these days I just write it by hand. Flex box and css grid are supported well enough to not need this anymore anyway. I've used bootstrap mixins from sass for media queries in the past, but was unhappy with the lack of flexibility. Building at responsive (instead of adaptive), every design calls for breakpoints at different queries. As widely used as bootstrap is, css is used by nearly all websites and if developers can't support it that's on them ;)
Again, everything is customizable. Even the breakpoints. It’s just a matter of overriding the variables.