Docusaurus has built-in support for [MDX v1](https://mdxjs.com/), which allows you to write JSX within your Markdown files and render them as React components.
While both `.md` and `.mdx` files are parsed using MDX, some of the syntax are treated slightly differently. For the most accurate parsing and better editor support, we recommend using the `.mdx` extension for files containing MDX syntax.
You can also import your own components defined in other files or third-party components installed via npm! Check out the [MDX docs](https://mdxjs.com/) to see what other fancy stuff you can do with MDX.
:::caution
Since all doc files are parsed using MDX, any HTML is treated as JSX. Therefore, if you need to inline-style a component, follow JSX flavor and provide style objects. This behavior is different from Docusaurus 1. See also [Migrating from v1 to v2](../../migration/migration-manual.md#convert-style-attributes-to-style-objects-in-mdx).
You can not only import a file containing a component definition, but also import any code file as raw text, and then insert it in a code block, thanks to [Webpack raw-loader](https://webpack.js.org/loaders/raw-loader/). In order to use `raw-loader`, first you need to install it in your project:
You have to use `<CodeBlock>` rather than the Markdown triple-backtick ` ``` `, because the latter will ship out any of its content as-is, but you want JSX to insert the imported text here.
:::
:::warning
This feature is experimental and might be subject to API breaking changes in the future.
By convention, using the **`_` filename prefix** will not create any doc page and means the markdown file is a **"partial"**, to be imported by other files.
This way, you can reuse contents among multiple pages and avoid duplicating materials.
:::caution
The table-of-contents does not currently contain the imported Markdown headings. This is a technical limitation that we are trying to solve ([issue](https://github.com/facebook/docusaurus/issues/3915)).