CSS Modules

If you feel that inline styles are not a suitable solution for your project and your team, but you still want to keep the styles as close as possible to your components, there is a solution for you, called CSS Modules.

Webpack

Before diving into CSS Modules and learning how it works, it is important to understand how it was created and the tools that support it.

In Chapter 2, Clean Up Your Code, we looked at how we can write ES2015 code and transpile it using Babel and its presets. As soon as the application grows, you may want to split your code base into modules as well.

To divide the application into small modules that you can import whenever you need them, while still creating a big bundle for the browser, you can use a tool such as Browserify or Webpack. These tools are called module bundlers, and what they do is load all the dependencies of your application into a single bundle that can be executed in the browser, which does not have any concept of modules (yet).

Webpack is...