--- /dev/null
+<?php
+
+/**
+ * @file
+ * Module for attaching CSS during tests.
+ *
+ * CSS pointer-events properties cause testing errors.
+ */
+
+/**
+ * Implements hook_page_attachments().
+ */
+function settings_tray_test_css_page_attachments(array &$attachments) {
+ // Unconditionally attach an asset to the page.
+ $attachments['#attached']['library'][] = 'settings_tray_test_css/drupal.css_fix';
+}