# Reference

The Textual reference documentation covers all the built-in components, styles, and APIs available in the framework.

## Contents

| Section                            | Description                                                    |
|------------------------------------|----------------------------------------------------------------|
| [API Reference](../api/index.md)   | Module-level API reference for all Textual modules             |
| [Widgets](../widgets/index.md)     | Reference for all built-in widgets                             |
| [Styles](../styles/index.md)       | CSS styles for customizing appearance and layout               |
| [Events](../events/index.md)       | Events for handling user interactions and system notifications |
| [CSS Types](../css_types/index.md) | Data types accepted by CSS style rules                         |
