Fix alignment of close notification button

web/css/styles.min.css

@@ -988,7 +988,7 @@ a {
   float: right;
   height: 7px;
   margin-right: -5px;
-  margin-top: 10px;
+  margin-top: 9px;
   width: 7px;
 }
 .notification-container .mark-seen:hover {