Move responsive position utilities from marketing to core#459

Merged

shawnbot merged 6 commits intorelease-11.0.0from responsive-layout-in-core

Jan 23, 2019

+367-437

Commits on Jan 22, 2019

move responsive utils to core

Sophie Shepherd
authored and
shawnbot
committed
feat(primer-support): add $responsive-positions variable
shawnbot
committed
refactor(primer-utilities): use responsive variables
shawnbot
committed
feat(selector-no-utility): add responsive position classes
shawnbot
committed

Commits on Jan 23, 2019