People have been confused about Pure’s built-in Grids unit sizes because we currently only have reduced fractions; e.g.,
pure-u-1-2 exist, but
pure-u-12-24 does not.
The Grids docs now contain a visual list of all the available pre-built unit sizes, making it a great reference!
Also, the next version of Pure will ship with both the reduced and non-reduced fraction units, i.e.,
pure-u-12-24 will be there. And instead of manually copy/pasting these duplicate style rules, we built the Pure Grids Rework Plugin. We’re actually using this tool to generate Pure’s
grids-units.css file on
master, and you can use it to create custom unit sizes if Pure’s defaults don’t work for you.