Initial Drupal 11 with DDEV setup

web/core/modules/navigation/templates/block--navigation.html.twig

@@ -0,0 +1,40 @@
+{#
+/**
+ * @file
+ * Default theme implementation to display a navigation_block.
+ *
+ * Available variables:
+ * - plugin_id: The ID of the navigation_block implementation.
+ * - label: The configured label of the navigation_block if visible.
+ * - configuration: A list of the navigation_block's configuration values.
+ *   - label: The configured label for the navigation_block.
+ *   - label_display: The display settings for the label.
+ *   - provider: The module or other provider that provided this
+       navigation_block plugin.
+ *   - Navigation block plugin specific settings will also be stored here.
+ * - content: The content of this navigation_block.
+ * - attributes: array of HTML attributes populated by modules, intended to
+ *   be added to the main container tag of this template.
+ *   - id: A valid HTML ID and guaranteed unique.
+ * - title_attributes: Same as attributes, except applied to the main title
+ *   tag that appears in the template.
+ * - title_prefix: Additional output populated by modules, intended to be
+ *   displayed in front of the main title tag that appears in the template.
+ * - title_suffix: Additional output populated by modules, intended to be
+ *   displayed after the main title tag that appears in the template.
+ *
+ * @see template_preprocess_navigation_block()
+ *
+ * @ingroup themeable
+ */
+#}
+<div{{ attributes.addClass('toolbar-block') }}>
+  {{ title_prefix }}
+  {% if label %}
+    <h2{{ title_attributes.addClass('toolbar-block__title').setAttribute('data-drupal-tooltip', label).setAttribute('data-drupal-tooltip-class', 'toolbar-block__title-tooltip') }}>{{ label }}</h2>
+  {% endif %}
+  {{ title_suffix }}
+  {% block content %}
+    {{ content }}
+  {% endblock %}
+</div>