Minor - missed setting overflow
diff --git a/ui/src/main/frontend/scss/cms.scss b/ui/src/main/frontend/scss/cms.scss
index f3fbc5c..4be84bd 100644
--- a/ui/src/main/frontend/scss/cms.scss
+++ b/ui/src/main/frontend/scss/cms.scss
@@ -197,6 +197,7 @@
 
 .Main-Content .level-left {
   overflow-x: auto;
+  overflow-y: hidden;
 }
 
 .main-section {