Index: lams_central/web/css/_learner_base.scss
===================================================================
diff -u -r2b0d90c8e8bc8a1b4a44750cde00d730ea7a034f -r973a921a8f59a78026f54c84d6b04e2378bac517
--- lams_central/web/css/_learner_base.scss	(.../_learner_base.scss)	(revision 2b0d90c8e8bc8a1b4a44750cde00d730ea7a034f)
+++ lams_central/web/css/_learner_base.scss	(.../_learner_base.scss)	(revision 973a921a8f59a78026f54c84d6b04e2378bac517)
@@ -812,12 +812,12 @@
 }
 
 // Tooltips used for learner progress and gradebook (large version)
-.tooltip {
+.progress-bar-tooltip {
 	position: absolute;
 	border: $border-thin-default;
 	background-color: $gray-light-mid;
 	padding: 3px;
-	z-index: 5;
+	z-index: 1001;
 	width: 150px;
 	font-size: 0.9em;
 	word-wrap: break-word;