One of the key benefits of BuckleScript is the ease in which it makes the process of porting JavaScript libraries so they can be used within the context of a ReasonML application. The Reason Package Index, or [redex](https://redex.github.io/), provides a central place for browsing all available packages. Additionally, creating your own BuckleScript bindings is a straight forward process that also provides value in the form of knowledge surrounding the inner-workings of the library at hand. In this lesson, we learn how to integrate the emotion css-in-js libray into our project by installing the `bs-css` package. Once installed, we'll create a `.re` file for our style rules and see how we can add global css, as well as styles for specific css classes which we'll target using React's `className` prop. ### Link * [ReasonReact Docs](https://reasonml.github.io/reason-react/docs) * [`bs-css` - GitHub](https://github.com/SentiaAnalytics/bs-css) * [`bs-css` - Redex](https://redex.github.io/package/bs-css)