Added Event Grid as display format

assets/css/event-grid.css

+.event-grid .views-row {
+  height: 297px; }
+  .event-grid .views-row .agenda-box-pattern {
+    height: 100%; }
+
+/*# sourceMappingURL=event-grid.css.map */

assets/scss/event-grid.scss

+.event-grid{
+  .views-row{
+    height: 297px;
+
+    .agenda-box-pattern{
+      height: 100%;
+    }
+  }
+}
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cern_display_formats.libraries.yml

@@ -8,4 +8,10 @@ featured-banner-stylesheets:
   version: 1.x
   css:
     layout:
-      assets/css/featured-banner.css: {}
+      assets/css/featured-banner.css: {}
\ No newline at end of file
+
+event-grid-stylesheets:
+  version: 1.x
+  css:
+    layout:
+      assets/css/event-grid.css: {}
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cern_display_formats.module

@@ -55,5 +55,8 @@ function cern_display_formats_views_post_render(ViewExecutable $view, &$output,
 		$view->display_handler->setOption('css_class', 'accordion-cern');
 	} elseif ($view->display_handler->view->style_plugin->getPluginId() == "card_grid") {
 		$view->display_handler->setOption('css_class', 'cern-view-display-page cern-view-display-resources');
+	} elseif ($view->display_handler->view->style_plugin->getPluginId() == "event_grid") {
+		$view->display_handler->setOption('css_class', 'event-grid');
+		$output['#attached']['library'][] = "cern_display_formats/event-grid-stylesheets";	//attaches the stylesheet
 	}
 }
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src/Plugin/views/style/EventGrid.php

+<?php
+
+
+namespace Drupal\cern_display_formats\Plugin\views\style;
+
+use Drupal\core\form\FormStateInterface;
+use Drupal\views\Plugin\views\style\DefaultStyle;
+
+/**
+ * Style plugin rendering as Event Grid
+ *
+ * @ingroup views_style_plugins
+ *
+ * @ViewsStyle(
+ *   id = "event_grid",
+ *   title = @Translation("Event Grid"),
+ *   help = @Translation("Displays content as an Event Grid"),
+ *   theme = "views_view_unformatted",
+ *   display_types = {"normal"}
+ * )
+ */
+class EventGrid extends DefaultStyle {
+
+	protected $usesRowPlugin = true;
+
+	/**
+	 * Does the style plugin support custom css class for the rows.
+	 *
+	 * @var bool
+	 */
+	protected $usesRowClass = true;
+
+	protected $usesoptions = true;
+
+	protected $renderFields = true;
+
+
+}
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