# Theme-Styled Button for the Comment Form

> Replaces the comment form's submit input with a real button element that carries your theme's button classes, so it matches the other buttons on your site.

- Type: PHP
- Runs: Run everywhere
- Category: [Forms](https://wpide.com/library/category/forms/)
- Tags: comments, buttons, styling
- Author: WPIDE Team
- Installs: 0
- Updated: 2026-10-28
- Page: https://wpide.com/library/form-comment-button-element/

## Code

```php
$wpide_comment_button_classes = 'wp-element-button';

add_filter( 'comment_form_defaults', function ( $defaults ) use ( $wpide_comment_button_classes ) {
    $defaults['class_submit']  = trim( ( isset( $defaults['class_submit'] ) ? $defaults['class_submit'] : 'submit' ) . ' ' . $wpide_comment_button_classes );
    $defaults['submit_button'] = '<button name="%1$s" type="submit" id="%2$s" class="%3$s">%4$s</button>';

    return $defaults;
} );
```

## Notes

Set the classes your theme uses, such as wp-element-button for block themes or btn btn-primary for Bootstrap-based themes.

## How to use it

Install the free WPIDE plugin (https://wordpress.org/plugins/wpide/), find "Theme-Styled Button for the Comment Form" in its snippet library and add it in one click; or create a new PHP snippet in WPIDE (or any code snippets plugin) and paste the code above. More snippets: https://wpide.com/library/