Creating a type style guide
Typography makes up most of our sites and getting it right across a variety of viewports is important. Style guides can help you with this and Susan Robertson explains how she used them to help FiftyThree achieve it.
It was my goal to dig in and inventory the styles, then work with the design and development team to create styles that could be used across the site. While figuring out which type styles would be best for accommodating change and growth on the site, I would put together some mixins that could easily be used for future designs.
An excerpt from Creating a type style guide