MailChimp Pattern Library

MailChimp's pattern library is public and if you want inspiration about how to use one, or maybe you need to create one, you should definitely check it.
The MailChimp Pattern Library is a byproduct of our move to a responsive, nimble, and intuitive app. Constant iteration requires both an efficient workflow and a well defined collection of atomic elements that can assemble new UIs quickly without accruing new technical or design debt.