diff --git a/core/modules/views/templates/views-view-grid.html.twig b/core/modules/views/templates/views-view-grid.html.twig
index 38a86c3..762a156 100644
--- a/core/modules/views/templates/views-view-grid.html.twig
+++ b/core/modules/views/templates/views-view-grid.html.twig
@@ -28,12 +28,16 @@
 #}
 {%
   set classes = [
+   'views-view-grid',
     options.alignment,
+    'cols-' ~ options.columns,
+    'clearfix',
   ]
 %}
 {% if options.row_class_default %}
   {%
     set row_classes = [
+      'views-row',
       options.alignment == 'horizontal' ? 'clearfix',
     ]
   %}
@@ -41,6 +45,7 @@
 {% if options.col_class_default %}
   {%
     set col_classes = [
+      'views-col',
       options.alignment == 'vertical' ? 'clearfix',
     ]
   %}
diff --git a/core/modules/views/templates/views-view-summary-unformatted.html.twig b/core/modules/views/templates/views-view-summary-unformatted.html.twig
index 15b955b..5e596a8 100644
--- a/core/modules/views/templates/views-view-summary-unformatted.html.twig
+++ b/core/modules/views/templates/views-view-summary-unformatted.html.twig
@@ -21,7 +21,7 @@
  */
 #}
 {% for row in rows  %}
-  {{ options.inline ? '<span' : '<div' }} >
+  {{ options.inline ? '<span' : '<div' }} class="views-summary views-summary-unformatted">
   {% if row.separator -%}
     {{ row.separator }}
   {%- endif %}
diff --git a/core/modules/views/templates/views-view-summary.html.twig b/core/modules/views/templates/views-view-summary.html.twig
index c2eaac6..2a42905 100644
--- a/core/modules/views/templates/views-view-summary.html.twig
+++ b/core/modules/views/templates/views-view-summary.html.twig
@@ -20,8 +20,8 @@
  * @ingroup themeable
  */
 #}
-<div>
-  <ul>
+<div class="item-list">
+  <ul class="views-summary">
   {% for row in rows %}
     <li><a href="{{ row.url }}"{{ row.attributes.addClass(row.active ? 'is-active')|without('href') }}>{{ row.link }}</a>
       {% if options.count %}