# ClassicEditorSubscript

Adds Classic product controls for Subscript, retaining its public options. Do not add it again when ClassicEditorKit already installs it.

Adds Classic product controls for Subscript, retaining its public options. Do not add it again when ClassicEditorKit already installs it.

`@quirekit/classic-editor` · **AGPL-3.0-only**

## Editor compatibility
Layer：**Classic product integration**
| Editor | Status | Assembly and boundaries |
| --- | --- | --- |
| Classic | Supported | [classicEditorPreset](/en/plugins/reference/classic-editor-preset) — Use the product-neutral classicEditorPreset without duplicating installed capabilities. The Word preset replaces paragraphs, headings and container lists; do not stack generic structures onto that model. |
| Block | Unsupported | Block does not consume Classic product contributions, plugins or paginated assembly. Use shared capabilities and Block adapters instead of copying this entry's Classic configuration. |

“Supported” means the product assembly above exists; interaction, host services and file formats retain their own conditions. See [status and integration rules](/en/plugins/compatibility). Licensing is shown separately.

## Installation

```sh
pnpm add @quirekit/classic-editor@alpha
```

Use the [Classic kit](/en/plugins/reference/classic-editor-kit). Individual adapters support custom assembly or replacement without duplicate names.

```ts
import { ClassicEditorSubscript } from '@quirekit/classic-editor'
```

Use compatible versions available from your distribution source. This site uses the Alpha workspace. License labels come from package metadata; see [support and licensing](/en/support).

## Integration by editor

These snippets use an existing host element named element. The host owns container sizing and persistence; call instance.destroy() on teardown. Avoid duplicating preset capabilities and supply required host ports before installation.

### Classic

Use the product-neutral classicEditorPreset without duplicating installed capabilities. The Word preset replaces paragraphs, headings and container lists; do not stack generic structures onto that model.

[classicEditorPreset](/en/plugins/reference/classic-editor-preset)

```ts
import { createClassicEditor } from '@quirekit/classic-editor'
import '@quirekit/classic-editor/styles.css'

const instance = createClassicEditor({ element })
```

### Block

Block does not consume Classic product contributions, plugins or paginated assembly. Use shared capabilities and Block adapters instead of copying this entry's Classic configuration.

## Configuration

These are extension-level defaults. Presets can override them; they are distinct from current document attributes. See [configuration](/en/plugins/configuration).

### HTMLAttributes

HTML attributes added when the mark serializes to HTML.

Type：`Record<string, unknown>`

Default：`{}`

## Commands and runtime

This entry declares no directly enumerable commands. Children supply bundle commands; product plugins use contributions or document services.

## Next steps

Return to [all plugins](/en/plugins), or read [configuration](/en/plugins/configuration) to distinguish options, attributes and commands.

Continue with [Classic quick start](/en/classic/quick-start) and [configuration/lifetime](/en/classic/configuration). See [product plugin development](/en/build/product-plugin) for your own UI and services.