diff --git a/templates/blocks/block.html.twig b/templates/blocks/block.html.twig
new file mode 100644
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+++ b/templates/blocks/block.html.twig
@@ -0,0 +1,52 @@
+{#
+/**
+ * @file
+ * Theme override to display a block.
+ *
+ * Available variables:
+ * - plugin_id: The ID of the block implementation.
+ * - label: The configured label of the block if visible.
+ * - configuration: A list of the block's configuration values.
+ *   - label: The configured label for the block.
+ *   - label_display: The display settings for the label.
+ *   - provider: The module or other provider that provided this block plugin.
+ *   - Block plugin specific settings will also be stored here.
+ * - content: The content of this 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_block()
+ */
+#}
+{%
+  set classes = [
+  'block',
+  'block-' ~ configuration.provider|clean_class,
+  'block-' ~ plugin_id|clean_class,
+]
+%}
+
+{% if in_layout_builder %}
+  {{ attach_library('uw_theme_admin/uw_layout_builder') }}
+{% endif %}
+
+<div{{ attributes.addClass(classes) }}>
+  {% if admin_label %}
+    <div class="uw-admin-label">{{ admin_label }}</div>
+  {% endif %}
+  {{ title_prefix }}
+  {% if label %}
+    <h2{{ title_attributes }}>{{ label }}</h2>
+  {% endif %}
+  {{ title_suffix }}
+  {% block content %}
+    {{ content }}
+  {% endblock %}
+</div>