--- /dev/null
+{#
+/**
+ * @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,
+ 'cover-image',
+ ]
+%}
+
+{% set background_image = file_url(content.field_banner_image.0['#item'].entity.uri.value) %}
+
+<div{{ attributes.addClass(classes) }} style="background-image: url({{ background_image }})">
+ <div class="block-inner">
+ {{ title_prefix }}
+ {% if label %}
+ <h2{{ title_attributes }}>{{ label }}</h2>
+ {% endif %}
+ {{ title_suffix }}
+ {% block content %}
+ {{ content.field_banner_image }}
+ <div class="summary">
+ {{ content|without('field_banner_image') }}
+ </div>
+ {% endblock %}
+ </div>
+</div>