<?php
/**
 * @file
 * Bootstrap sub-theme.
 *
 * Place your custom PHP code in this file.
 */

/**
 * Implements hook_preprocess_html().
 */
function gridspinoza_preprocess_html(&$variables) {
  if ($node = \Drupal::request()->attributes->get('node')) {
    $variables['attributes']['class'][] = 'page-node-' . $node->id();
  }
}