Index: lams_monitoring/web/css/monitorLesson.css
===================================================================
diff -u -r927cd8d0d3f34e4efbfdcaa36779240244a041b1 -rfa2ad14fcf969120bc068f9b22e1fcebf62ce39d
--- lams_monitoring/web/css/monitorLesson.css	(.../monitorLesson.css)	(revision 927cd8d0d3f34e4efbfdcaa36779240244a041b1)
+++ lams_monitoring/web/css/monitorLesson.css	(.../monitorLesson.css)	(revision fa2ad14fcf969120bc068f9b22e1fcebf62ce39d)
@@ -1,4 +1,17 @@
 /********** GENERAL/DIALOG STYLES **********/
+#loadingOverlay {
+	width: 100%;
+	height: 100%;
+	z-index: 2000;
+	position: absolute;
+	background-color: #FFFFFF;
+	text-align: center;
+}
+
+#loadingOverlay img {
+	margin-top: 30%;
+}
+
 div#tabs {
 	width: 99%;
 	overflow: hidden;