construction base pro child

/**
 *Your code goes below
 */
/**
 * [construction_base_pro_child_custom_body_classes description]
 * @return array body_classes
 */
function construction_base_pro_child_custom_body_classes( $classes ){

	if( is_single() ) {

		$id = get_queried_object_id();

		$terms = get_the_category( $id );

		if( ! empty( $terms ) ) :

			foreach( $terms as $key=>$term ) {

				$classes[] = 'category-'.$term->slug;

			}

		endif;

		return $classes;

	}

}

add_action('body_class','construction_base_pro_child_custom_body_classes');