gridly/lib/gridly-col-widths.css

The minimal (~100-170 bytes) grid system for modern browsers.

@media (min-width: 48em) {
  .col-tenth { flex: 0 0 10%; }
  .col-fifth { flex: 0 0 20%; }
  .col-quarter { flex: 0 0 25%; }
  .col-third { flex: 0 0 33.3333334%; }
  .col-half { flex: 0 0 50%; }
}