add_action( 'wp_enqueue_scripts', 'my_theme_enqueue_styles' ); function my_theme_enqueue_styles() { $parenthandle = 'twenty-twenty-four-style'; // This is 'twenty-twenty-four-style' for the Twenty Twenty-four theme. $theme = wp_get_theme(); wp_enqueue_style( $parenthandle, get_template_directory_uri() . '/style.css', array(), // if the parent theme code has a dependency, copy it to here $theme->parent()->get('Version') ); wp_enqueue_style( 'custom-style', get_stylesheet_uri(), array( $parenthandle ), $theme->get('Version') // this only works if you have Version in the style header ); }