Title: wp_enqueue_classic_theme_styles
Published: November 2, 2022
Last modified: February 24, 2026

---

# wp_enqueue_classic_theme_styles()

## In this article

 * [Description](https://developer.wordpress.org/reference/functions/wp_enqueue_classic_theme_styles/?output_format=md#description)
 * [Source](https://developer.wordpress.org/reference/functions/wp_enqueue_classic_theme_styles/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/functions/wp_enqueue_classic_theme_styles/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/functions/wp_enqueue_classic_theme_styles/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/functions/wp_enqueue_classic_theme_styles/?output_format=md#wp--skip-link--target)

Loads classic theme styles on classic themes in the frontend.

## 󠀁[Description](https://developer.wordpress.org/reference/functions/wp_enqueue_classic_theme_styles/?output_format=md#description)󠁿

This is used for backwards compatibility for Button and File blocks specifically.

## 󠀁[Source](https://developer.wordpress.org/reference/functions/wp_enqueue_classic_theme_styles/?output_format=md#source)󠁿

    ```php
    function wp_enqueue_classic_theme_styles() {
    	if ( ! wp_theme_has_theme_json() ) {
    		wp_enqueue_style( 'classic-theme-styles' );
    	}
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/script-loader.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/script-loader.php#L3420)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/script-loader.php#L3420-L3424)

## 󠀁[Related](https://developer.wordpress.org/reference/functions/wp_enqueue_classic_theme_styles/?output_format=md#related)󠁿

| Uses | Description | 
| [wp_theme_has_theme_json()](https://developer.wordpress.org/reference/functions/wp_theme_has_theme_json/)`wp-includes/global-styles-and-settings.php` |

Checks whether a theme or its parent has a theme.json file.

  | 
| [wp_enqueue_style()](https://developer.wordpress.org/reference/functions/wp_enqueue_style/)`wp-includes/functions.wp-styles.php` |

Enqueues a CSS stylesheet.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/functions/wp_enqueue_classic_theme_styles/?output_format=md#changelog)󠁿

| Version | Description | 
| [6.8.0](https://developer.wordpress.org/reference/since/6.8.0/) | Moved stylesheet registration outside of this function. | 
| [6.2.0](https://developer.wordpress.org/reference/since/6.2.0/) | Added File block styles. | 
| [6.1.0](https://developer.wordpress.org/reference/since/6.1.0/) | Introduced. |

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