# 📦 theme-classic

The classic theme for Docusaurus.

You can refer to the [theme configuration page](/guides/api-themes-theme-configuration) for more details on the configuration.

```bash npm2yarn
npm install --save @docusaurus/theme-classic
```

:::callout{intent="tip"}
If you have installed `@docusaurus/preset-classic`, you don't need to install it as a dependency.
:::

## Configuration

Accepted fields:

```mdx-code-block
<APITable>
```

| Option      | Type                 | Default | Description                                                                                                                                              |
| ----------- | -------------------- | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `customCss` | `string[] \| string` | `[]`    | Stylesheets to be imported globally as [client modules](/guides/advanced-client#client-modules). Relative paths are resolved against the site directory. |

```mdx-code-block
</APITable>
```

:::callout{intent="note"}
Most configuration for the theme is done in `themeConfig`, which can be found in [theme configuration](/guides/api-themes-theme-configuration).
:::

### Example configuration

You can configure this theme through preset options or plugin options.

:::callout{intent="tip"}
Most Docusaurus users configure this plugin through the preset options.
:::

```js config-tabs
// Preset Options: theme
// Plugin Options: @docusaurus/theme-classic

const config = {
  customCss: './src/css/custom.css',
};
```

## Related pages

- [Docusaurus themes](./api-themes-overview.md)
- [Theme configuration](./api-themes-theme-configuration.md)
- [📦 theme-live-codeblock](./api-themes-theme-live-codeblock.md)
- [📦 theme-search-algolia](./api-themes-theme-search-algolia.md)
- [📦 theme-mermaid](./api-themes-theme-mermaid.md)

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