input-moment | React datetime picker powered by momentjs | Date Time Utils library

I am trying to figure out how I get CSS to be successfully applied to components that I import from an npm library.

The core of my issue seems to be that I'm using css-loader as part of the react starter kit (https://github.com/kriasoft/react-starter-kit) and don't fully understand how it works.

I have looked at a couple of datepicker libraries - for example https://github.com/YouCanBookMe/react-datetime and https://github.com/wangzuo/input-moment.

In each case, the source code is applying local class names to the HTML. The formats that are embedded in the libraries aren't automatically applied. I've tried importing them manually from /node_modules in the component that uses the library component. I've also tried copying the relevant styles to a local css file and importing that.

The issue appears to be that css-loader is converting any imported styles class names to be module-specific class names which then don't match the actual class names in the resulting HTML.

Am I approaching this wrong? What's the preferred way to import components and apply custom styling to them?

Thanks!