diff --git a/themes/cupper-hugo-theme/assets/css/template-styles.css b/themes/cupper-hugo-theme/assets/css/template-styles.css
index b746b6a..b72a7b3 100644
--- a/themes/cupper-hugo-theme/assets/css/template-styles.css
+++ b/themes/cupper-hugo-theme/assets/css/template-styles.css
@@ -399,6 +399,7 @@ caption {
     top: 0;
     left: 0;
     border-right: 2px solid;
+    overflow: auto;
 }
 
 .intro-and-nav>div {