diff --git a/core/modules/views_ui/templates/views-ui-display-tab-bucket.html.twig b/core/modules/views_ui/templates/views-ui-display-tab-bucket.html.twig
index 9009d88..6d54340 100644
--- a/core/modules/views_ui/templates/views-ui-display-tab-bucket.html.twig
+++ b/core/modules/views_ui/templates/views-ui-display-tab-bucket.html.twig
@@ -17,14 +17,7 @@
  * @ingroup themeable
  */
 #}
-{%
-  set classes = [
-    'views-ui-display-tab-bucket',
-    name ? name|clean_class,
-    overridden ? 'overridden',
-  ]
-%}
-<div{{ attributes.addClass(classes) }}>
+<div>
   {% if title -%}
     <h3>{{ title }}</h3>
   {%- endif %}
diff --git a/core/modules/views_ui/templates/views-ui-display-tab-setting.html.twig b/core/modules/views_ui/templates/views-ui-display-tab-setting.html.twig
index c90e5c9..413be07 100644
--- a/core/modules/views_ui/templates/views-ui-display-tab-setting.html.twig
+++ b/core/modules/views_ui/templates/views-ui-display-tab-setting.html.twig
@@ -18,20 +18,11 @@
  * @ingroup themeable
  */
 #}
-{%
-  set classes = [
-    'views-display-setting',
-    'clearfix',
-    'views-ui-display-tab-setting',
-    defaulted ? 'defaulted',
-    overridden ? 'overridden',
-]
-%}
-<div{{ attributes.addClass(classes) }}>
+<div>
   {% if description -%}
-    <span class="label">{{ description }}</span>
+    <span>{{ description }}</span>
   {%- endif %}
   {% if settings_links %}
-    {{ settings_links|safe_join('<span class="label">&nbsp;|&nbsp;</span>') }}
+    {{ settings_links|safe_join('<span>&nbsp;|&nbsp;</span>') }}
   {% endif %}
 </div>
diff --git a/core/modules/views_ui/templates/views-ui-expose-filter-form.html.twig b/core/modules/views_ui/templates/views-ui-expose-filter-form.html.twig
index dfc4775..3d14a27 100644
--- a/core/modules/views_ui/templates/views-ui-expose-filter-form.html.twig
+++ b/core/modules/views_ui/templates/views-ui-expose-filter-form.html.twig
@@ -30,7 +30,7 @@
 {{ form.value }}
 
 {% if form.use_operator %}
-  <div class="views-left-40">
+  <div>
   {{ form.use_operator }}
   </div>
 {% endif %}
@@ -57,7 +57,7 @@
   Only output the right column markup if there's a left column to begin with.
 #}
 {% if form.operator['#type'] %}
-  <div class="views-right-60">
+  <div>
   {{ remaining_form }}
   </div>
 {% else %}
diff --git a/core/modules/views_ui/templates/views-ui-rearrange-filter-form.html.twig b/core/modules/views_ui/templates/views-ui-rearrange-filter-form.html.twig
index b003a89..5624a70 100644
--- a/core/modules/views_ui/templates/views-ui-rearrange-filter-form.html.twig
+++ b/core/modules/views_ui/templates/views-ui-rearrange-filter-form.html.twig
@@ -15,7 +15,7 @@
  */
 #}
 {{ form.override }}
-<div class="scroll" data-drupal-views-scroll>
+<div data-drupal-views-scroll>
   {% if grouping %}
     {{ form.filter_groups.operator }}
   {% else %}
diff --git a/core/modules/views_ui/templates/views-ui-view-info.html.twig b/core/modules/views_ui/templates/views-ui-view-info.html.twig
index a0f286c..8b1e989 100644
--- a/core/modules/views_ui/templates/views-ui-view-info.html.twig
+++ b/core/modules/views_ui/templates/views-ui-view-info.html.twig
@@ -12,5 +12,5 @@
  * @ingroup themeable
  */
 #}
-<h3 class="views-ui-view-title views-table-filter-text-source">{{ title }}</h3>
-<div class="views-ui-view-displays">{{ displays }}</div>
+<h3>{{ title }}</h3>
+<div>{{ displays }}</div>
diff --git a/core/modules/views_ui/templates/views-ui-view-preview-section.html.twig b/core/modules/views_ui/templates/views-ui-view-preview-section.html.twig
index cfc840f..9430063 100644
--- a/core/modules/views_ui/templates/views-ui-view-preview-section.html.twig
+++ b/core/modules/views_ui/templates/views-ui-view-preview-section.html.twig
@@ -13,8 +13,8 @@
  * @ingroup themeable
  */
 #}
-<h1 class="section-title">{{ title }}</h1>
+<h1>{{ title }}</h1>
 {% if links %}
-  <div class="contextual">{{ links }}</div>
+  <div>{{ links }}</div>
 {% endif %}
-<div class="preview-section">{{ content }}</div>
+<div>{{ content }}</div>
diff --git a/core/themes/classy/templates/views-ui-container.html.twig b/core/themes/classy/templates/views-ui-container.html.twig
new file mode 100644
index 0000000..d45b158
--- /dev/null
+++ b/core/themes/classy/templates/views-ui-container.html.twig
@@ -0,0 +1,15 @@
+{#
+/**
+ * @file
+ * Default theme implementation for a generic views UI container/wrapper.
+ *
+ * Available variables:
+ * - attributes: HTML attributes to apply to the container element.
+ * - children: The remaining elements such as dropbuttons and tabs.
+ *
+ * @see template_preprocess_views_ui_container()
+ *
+ * @ingroup themeable
+ */
+#}
+<div{{ attributes }}>{{ children }}</div>
diff --git a/core/themes/classy/templates/views-ui-display-tab-bucket.html.twig b/core/themes/classy/templates/views-ui-display-tab-bucket.html.twig
new file mode 100644
index 0000000..9009d88
--- /dev/null
+++ b/core/themes/classy/templates/views-ui-display-tab-bucket.html.twig
@@ -0,0 +1,35 @@
+{#
+/**
+ * @file
+ * Default theme implementation for each "box" on the display query edit screen.
+ *
+ * Available variables:
+ * - attributes: HTML attributes to apply to the container element.
+ * - actions: Action links such as "Add", "And/Or, Rearrange" for the content.
+ * - title: The title of the bucket, e.g. "Fields", "Filter Criteria", etc.
+ * - content: Content items such as fields or settings in this container.
+ * - name: The name of the bucket, e.g. "Fields", "Filter Criteria", etc.
+ * - overridden: A boolean indicating the setting has been overridden from the
+ *   default.
+ *
+ * @see template_preprocess_views_ui_display_tab_bucket()
+ *
+ * @ingroup themeable
+ */
+#}
+{%
+  set classes = [
+    'views-ui-display-tab-bucket',
+    name ? name|clean_class,
+    overridden ? 'overridden',
+  ]
+%}
+<div{{ attributes.addClass(classes) }}>
+  {% if title -%}
+    <h3>{{ title }}</h3>
+  {%- endif %}
+  {{ content }}
+  {% if actions -%}
+    {{ actions }}
+  {%- endif %}
+</div>
diff --git a/core/themes/classy/templates/views-ui-display-tab-setting.html.twig b/core/themes/classy/templates/views-ui-display-tab-setting.html.twig
new file mode 100644
index 0000000..c90e5c9
--- /dev/null
+++ b/core/themes/classy/templates/views-ui-display-tab-setting.html.twig
@@ -0,0 +1,37 @@
+{#
+/**
+ * @file
+ * Default theme implementation for Views UI display tab settings.
+ *
+ * Template for each row inside the "boxes" on the display query edit screen.
+ *
+ * Available variables:
+ * - attributes: HTML attributes such as class for the container.
+ * - description: The description or label for this setting.
+ * - settings_links: A list of links for this setting.
+ * - defaulted: A boolean indicating the setting is in its default state.
+ * - overridden: A boolean indicating the setting has been overridden from the
+ *   default.
+ *
+ * @see template_preprocess_views_ui_display_tab_setting()
+ *
+ * @ingroup themeable
+ */
+#}
+{%
+  set classes = [
+    'views-display-setting',
+    'clearfix',
+    'views-ui-display-tab-setting',
+    defaulted ? 'defaulted',
+    overridden ? 'overridden',
+]
+%}
+<div{{ attributes.addClass(classes) }}>
+  {% if description -%}
+    <span class="label">{{ description }}</span>
+  {%- endif %}
+  {% if settings_links %}
+    {{ settings_links|safe_join('<span class="label">&nbsp;|&nbsp;</span>') }}
+  {% endif %}
+</div>
diff --git a/core/themes/classy/templates/views-ui-expose-filter-form.html.twig b/core/themes/classy/templates/views-ui-expose-filter-form.html.twig
new file mode 100644
index 0000000..dfc4775
--- /dev/null
+++ b/core/themes/classy/templates/views-ui-expose-filter-form.html.twig
@@ -0,0 +1,67 @@
+{#
+/**
+ * @file
+ * Default theme implementation for exposed filter form.
+ *
+ * Available variables:
+ * - form_description: The exposed filter's description.
+ * - expose_button: The button to toggle the expose filter form.
+ * - group_button: Toggle options between single and grouped filters.
+ * - required: A checkbox to require this filter or not.
+ * - label: A filter label input field.
+ * - description: A filter description field.
+ * - operator: The operators for how the filters value should be treated.
+ *   - #type: The operator type.
+ * - value: The filters available values.
+ * - use_operator: Checkbox to allow the user to expose the operator.
+ * - more: A details element for additional field exposed filter fields.
+ *
+ * @ingroup themeable
+ */
+#}
+{{ form.form_description }}
+{{ form.expose_button }}
+{{ form.group_button }}
+{{ form.required }}
+{{ form.label }}
+{{ form.description }}
+
+{{ form.operator }}
+{{ form.value }}
+
+{% if form.use_operator %}
+  <div class="views-left-40">
+  {{ form.use_operator }}
+  </div>
+{% endif %}
+
+{#
+  Collect a list of elements printed to exclude when printing the
+  remaining elements.
+#}
+{% set remaining_form = form|without(
+  'form_description',
+  'expose_button',
+  'group_button',
+  'required',
+  'label',
+  'description',
+  'operator',
+  'value',
+  'use_operator',
+  'more'
+  )
+%}
+
+{#
+  Only output the right column markup if there's a left column to begin with.
+#}
+{% if form.operator['#type'] %}
+  <div class="views-right-60">
+  {{ remaining_form }}
+  </div>
+{% else %}
+  {{ remaining_form }}
+{% endif %}
+
+{{ form.more }}
diff --git a/core/themes/classy/templates/views-ui-rearrange-filter-form.html.twig b/core/themes/classy/templates/views-ui-rearrange-filter-form.html.twig
new file mode 100644
index 0000000..b003a89
--- /dev/null
+++ b/core/themes/classy/templates/views-ui-rearrange-filter-form.html.twig
@@ -0,0 +1,27 @@
+{#
+/**
+ * @file
+ * Default theme implementation for Views UI rearrange filter form.
+ *
+ * Available variables:
+ * - form: A render element representing the form.
+ * - grouping: A flag whether or not there is more than one group.
+ * - ungroupable_table: The ungroupable filter table.
+ * - table: The groupable filter table.
+ *
+ * @see template_preprocess_views_ui_rearrange_filter_form()
+ *
+ * @ingroup themeable
+ */
+#}
+{{ form.override }}
+<div class="scroll" data-drupal-views-scroll>
+  {% if grouping %}
+    {{ form.filter_groups.operator }}
+  {% else %}
+    {{ form.filter_groups.groups.0 }}
+  {% endif %}
+  {{ ungroupable_table }}
+  {{ table }}
+</div>
+{{ form|without('override', 'filter_groups', 'remove_groups', 'filters') }}
diff --git a/core/themes/classy/templates/views-ui-style-plugin-table.html.twig b/core/themes/classy/templates/views-ui-style-plugin-table.html.twig
new file mode 100644
index 0000000..27463f5
--- /dev/null
+++ b/core/themes/classy/templates/views-ui-style-plugin-table.html.twig
@@ -0,0 +1,18 @@
+{#
+/**
+ * @file
+ * Default template for the settings of a table style views display.
+ *
+ * Available variables:
+ * - table: A table of options for each field in this display.
+ * - form: Any remaining form fields not included in the table.
+ *   - description_markup: An overview for the settings of this display.
+ *
+ * @see template_preprocess_views_ui_style_plugin_table()
+ *
+ * @ingroup themeable
+ */
+#}
+{{ form.description_markup }}
+{{ table }}
+{{ form }}
diff --git a/core/themes/classy/templates/views-ui-view-info.html.twig b/core/themes/classy/templates/views-ui-view-info.html.twig
new file mode 100644
index 0000000..a0f286c
--- /dev/null
+++ b/core/themes/classy/templates/views-ui-view-info.html.twig
@@ -0,0 +1,16 @@
+{#
+/**
+ * @file
+ * Default theme implementation for basic administrative info about a View.
+ *
+ * Available variables:
+ * - title: View title.
+ * - displays: List of displays.
+ *
+ * @see template_preprocess_views_ui_view_info()
+ *
+ * @ingroup themeable
+ */
+#}
+<h3 class="views-ui-view-title views-table-filter-text-source">{{ title }}</h3>
+<div class="views-ui-view-displays">{{ displays }}</div>
diff --git a/core/themes/classy/templates/views-ui-view-preview-section.html.twig b/core/themes/classy/templates/views-ui-view-preview-section.html.twig
new file mode 100644
index 0000000..cfc840f
--- /dev/null
+++ b/core/themes/classy/templates/views-ui-view-preview-section.html.twig
@@ -0,0 +1,20 @@
+{#
+/**
+ * @file
+ * Default theme implementation for a views UI preview section.
+ *
+ * Available variables:
+ * - title: The human readable section title.
+ * - links: A list of contextual links.
+ * - content: The content for this section preview.
+ *
+ * @see template_preprocess_views_ui_view_preview_section()
+ *
+ * @ingroup themeable
+ */
+#}
+<h1 class="section-title">{{ title }}</h1>
+{% if links %}
+  <div class="contextual">{{ links }}</div>
+{% endif %}
+<div class="preview-section">{{ content }}</div>