diff --git a/plugins/view-ics/message.js b/plugins/view-ics/message.js
index 5689c1f63..7a5d514c4 100644
--- a/plugins/view-ics/message.js
+++ b/plugins/view-ics/message.js
@@ -58,6 +58,7 @@
 				view.viewICS(null);
 				if (msg) {
 					// JSON-LD after parsing HTML
+					// See http://schema.org/
 					msg.linkedData.subscribe(data => {
 						if (!view.viewICS()) {
 							data.forEach(item => {
diff --git a/plugins/view-ics/style.css b/plugins/view-ics/style.css
new file mode 100644
index 000000000..b3a4e5c8c
--- /dev/null
+++ b/plugins/view-ics/style.css
@@ -0,0 +1,44 @@
+
+/**
+ * .SML-@type where @type is the value of the JSON-LD "@type":
+ * See http://schema.org/
+ */
+
+.SML-FlightReservation {
+}
+
+	.SML-Airline {
+	}
+
+	.SML-Airport {
+	}
+
+	.SML-Flight {
+	}
+
+.SML-FoodEstablishmentReservation {
+}
+
+	.SML-FoodEstablishment {
+	}
+
+.SML-ParcelDelivery {
+}
+
+	.SML-Order {
+	}
+
+	.SML-Organization {
+	}
+
+	.SML-Product {
+	}
+
+	.SML-PostalAddress {
+	}
+
+.SML-Person {
+}
+
+.SML-PromotionCard {
+}