[website] adding CSS style for important notifications

website/resources/css/custom.css

@@ -1,3 +1,10 @@
+.importantNotification {
+        background-color: #FFEBCD;
+        border-radius: 20px;
+        padding: 10px;
+        margin: 10px;
+}
+
 #clickForVideo {
 	padding: 20px 30px;
 	background-color: #DDD;