You can import code snippets from existing files via following syntax:
**Input**
```
...
...
@@ -236,6 +238,11 @@ export default {
<<< @/test/markdown/fragments/snippet.js{2}
::: tip
Since the import of the code snippets will be executed before webpack compilation, so you can't use the path alias in webpack. the default value of `@` is `process.cwd()`.
:::
## Advanced Configuration
VuePress uses [markdown-it](https://github.com/markdown-it/markdown-it) as the markdown renderer. A lot of the extensions above are implemented via custom plugins. You can further customize the `markdown-it` instance using the `markdown` option in `.vuepress/config.js`: