Oui! is still a very heavy work in progress, as is this website. I'm still trying to figure out what exactly I want from a style framework, but I am using it in lots of different projects to figure out what is working and what isn't.

<link rel="stylesheet" type="text/css" href="https://mckay.la/resources/oui/oui.min.css" />

Oui is a style framework that makes it easier to focus on getting work done instead of spending all of your time getting spacing, padding, fonts, colors, and everything in between to look how you want. It focuses on sensible defaults, rather than making expandability through classes. Classes are still around to tweak smaller things, but the idea is that you shouldn't have to write any of your own CSS for a page to look good as long as you used sensible markup.