diff --git a/editions/tw5.com/tiddlers/system/tw5.com-styles.tid b/editions/tw5.com/tiddlers/system/tw5.com-styles.tid
index 9c81de672..99c904605 100644
--- a/editions/tw5.com/tiddlers/system/tw5.com-styles.tid
+++ b/editions/tw5.com/tiddlers/system/tw5.com-styles.tid
@@ -45,6 +45,7 @@ tags: $:/tags/Stylesheet
 	padding: 1em;
 	height: 400px;
 	position: relative;
+	overflow: auto;
 }
 
 .tc-improvement-banner {