diff --git a/styles.css b/styles.css
index 9526c0745236b5ec4e08d6243e6fadd56636b75e..5d146f5b9f82d16025a69d30c40f7ae33e6d5e95 100644
--- a/styles.css
+++ b/styles.css
@@ -1007,6 +1007,7 @@ th.first-column-iena, th.second-column-iena, th.actions-column-iena, th.third-co
 .course-content ul.iena li.section{
     padding-top: 1rem;
     padding-bottom: 1rem;
+    background-color: white;
 }
 
 .course-content ul.iena{