text: # CSS
  
  `Bili` supports CSS by default with the help from [rollup-plugin-postcss](https://github.com/egoist/rollup-plugin-postcss):
  
  By default CSS files will be extracted to the same location where the JS is generated but with `.css` extension.
  
  You can inline CSS in your bundle by either using CLI option: `--no-extract-css` or config file:
  
  ```js
  module.exports = {
    output: {
      extractCSS: false
    }
  }
  ```
  
  ## PostCSS Config
  
  You can populate a `postcss.config.js` to use custom PostCSS plugins.
  
  ## CSS Preprocessors
  
  `rollup-plugin-postcss` also supports common CSS Preprocessors like Sass:
  
  ```bash
  yarn add node-sass --dev
  ```
  
  Then you can import `.scss` or `.sass` files in your code.
  
  For Stylus and Less, you also need to install `stylus` and `less` in your project.
  