RTL support

## Describe the feature

It would be nice to have some form of RTL support for the library. For example, you can see how [react native web](https://github.com/necolas/react-native-web/blob/master/docs/guides/style.md#implementation-details) handles this – the requirement is that there are different static styles compiled that can be switched between at runtime, particularly the LTR and RTL styles. https://github.com/kentcdodds/rtl-css-js is a library that does the actual "style flipping" logic.

## Motivation

We'd like to be able to support languages that have a RTL flow.

## Related Issues

I couldn't find any but let me know if this has been talked about before!

As a side note, I'm interested in whether this is something that you'd be open to PR's for. Thanks!