Initial Drupal 11 with DDEV setup

web/core/themes/claro/templates/maintenance-page.html.twig

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+{#
+/**
+ * @file
+ * Claro's theme implementation for maintenance page.
+ *
+ * This template is used for rendering non-frontpage maintenance pages. An
+ * example of this is /update.php.
+ *
+ * All available variables are mirrored in page.html.twig.
+ * Some may be blank but they are provided for consistency.
+ *
+ * @see template_preprocess_maintenance_page()
+ * @see maintenance-page--front.html.twig
+ */
+#}
+<div class="layout-container">
+
+  <header role="banner">
+    {% if site_name %}
+      <h2 class="site-name">{{ site_name }}</h2>
+    {% endif %}
+  </header>
+
+  {% if page.sidebar_first %}
+    <aside class="layout-sidebar-first" role="complementary">
+      {{ page.sidebar_first }}
+    </aside>{# /.layout-sidebar-first #}
+  {% endif %}
+
+  <main role="main" class="main-content">
+    {% if title %}
+      <h1 class="title">{{ title }}</h1>
+    {% endif %}
+    {{ page.highlighted }}
+    <div class="content">
+      {{ page.content }}
+    </div>
+  </main>
+
+  {% if page.page_bottom %}
+    <footer role="contentinfo">
+      {{ page.page_bottom }}
+    </footer>
+  {% endif %}
+
+</div>{# /.layout-container #}