ID ) ) ? 'style="background-image: url(' . esc_url( wp_get_attachment_url( get_post_thumbnail_id( $post->ID ) ) ) . ')"' : '';
$background_header_image = ( has_header_image() && empty( $background_header_image ) && ( is_home() || is_singular() ) ) ? 'style="background-image: url(' . esc_url( get_header_image() ) . ')"' : $background_header_image;
?>