Seems to have been for CSS and SVG bandwidth golf. The article mentions it being for this site: https://grid.iamkate.com/
According to the bottom of it, it can get quite a few views each day, so bandwidth savings may visibly effect hosting costs. The main CSS file is only 5kb compressed/15kb uncompressed, so it seems to have been part of a larger effort in minimalism.
According to the bottom of it, it can get quite a few views each day, so bandwidth savings may visibly effect hosting costs. The main CSS file is only 5kb compressed/15kb uncompressed, so it seems to have been part of a larger effort in minimalism.