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add_action( 'template_redirect','tu_add_elementor_filter', 999 );
function tu_add_elementor_filter() {
	if ( in_array( 'elementor-page elementor-page-' . get_the_ID(), get_body_class() ) ) {
		add_filter( 'body_class', 'tu_add_elementor_classes' );
		add_filter( 'generate_show_title','__return_false' );
	}
}

function tu_add_elementor_classes( $classes ) {
	$classes[] = 'full-width-content';
	return $classes;
}