Add custom CSS class to the HivePress page wrapper #hivepress #themes

functions.php

<?php
add_filter(
	'hivepress/v1/blocks/page',
	function( $args ) {
		return hivepress()->helper->merge_arrays(
			$args,
			[
				'attributes' => [
					'class' => [ 'my-custom-wrapper' ],
				],
			]
		);
	}
);