It's quite common to have such classes if you work with some kind of CMS system. In one of my previous companies we had bunch of similar classes that allowed ba

It's quite common to have such classes if you work with some kind of CMS system. In one of my previous companies we had bunch of similar classes that allowed basic layout adjustments (like margins, paddings, font-sizes). It's quite handy if you want to just edit the html and do not touch the css files at all.