diff --git a/style/spreadquiz.css b/style/spreadquiz.css
index 4447396..256f621 100644
--- a/style/spreadquiz.css
+++ b/style/spreadquiz.css
@@ -131,6 +131,7 @@ section.window-inner {
     padding: 1em;
     width: fit-content;
     max-height: calc(100% - 2em);
+    overflow: scroll;
 }
 
 /* ----- */