Elementor\Preview::print_custom_css PHP Метод

    public function print_custom_css()
    {
        $container_width = absint(get_option('elementor_container_width'));
        if (empty($container_width)) {
            return;
        }
        ?>
<style>.elementor-section.elementor-section-boxed > .elementor-container{max-width: <?php 
        echo esc_html($container_width);
        ?>
px</style><?php 
    }