Ability to import custom CSS libraries, components

I’m trying to build a new product using webflow and I love the responsive nature of it. We’re currently using Material Design for our product and I want to use it within webflow, but I have to recreate all the classes associated with it, as well as all the components.

I would love for a way to be able to import external CSS into the project and potentially components, almost like a theme that anyone can use. This would make my life a lot easier.