Download the example or clone the repo:
curl https://codeload.github.com/zeit/next.js/tar.gz/master | tar -xz --strip=2 next.js-master/examples/basic-css
cd basic-css
Install it and run:
npm install
npm run dev
Deploy it to the cloud with now (download)
now
Next.js ships with styled-jsx allowing you to write scope styled components with full css support. This is important for the modularity and code size of your bundles and also for the learning curve of the framework. If you know css you can write styled-jsx right away.