diff --git a/public/mod/quiz/report/overview/report.php b/public/mod/quiz/report/overview/report.php
index 30e668d7c33..fb944f54805 100644
--- a/public/mod/quiz/report/overview/report.php
+++ b/public/mod/quiz/report/overview/report.php
@@ -161,7 +161,7 @@ class quiz_overview_report extends attempts_report {
             }
 
             $this->set_up_table_columns($table, $columns, $headers, $this->get_base_url(), $options, false);
-            $table->set_attribute('class', 'table generaltable generalbox grades');
+            $table->set_attribute('class', 'generaltable generalbox grades');
 
             $table->out($options->pagesize, true);
 
diff --git a/public/mod/quiz/styles.css b/public/mod/quiz/styles.css
index 4acc0604208..33ab3fe8db2 100644
--- a/public/mod/quiz/styles.css
+++ b/public/mod/quiz/styles.css
@@ -306,6 +306,12 @@ body.path-mod-quiz table tbody tr.gradedattempt > td.sticky-column {
     background-color: #d9edf7;
 }
 
+body.path-mod-quiz table tbody tr > td.sticky-column,
+body.path-mod-quiz table thead tr > th.sticky-column,
+body.path-mod-quiz table tbody tr:not(.gradedattempt):hover td.sticky-column {
+    background-color: #fff;
+}
+
 /** Mod quiz summary **/
 #page-mod-quiz-summary #content {
     text-align: center;