a couple of useful css utils
Pre-release
Pre-release
v2.0.0-rc2 a couple of useful css utils 
the sets have been improved & expanded, each set except the last one is now distributed either w/ or w/o media queries support of your choice
the sources have been redeveloped from scratch w/ sass
class names have been revised to fit the naming scheme of the most recent bootstrap v4.0.0-beta
the jsdelivr cdn has been engaged to deliver the sets in production