diff --git a/web/site/css/theme.css b/web/site/css/theme.css
index e70f1b9..ee60571 100644
--- a/web/site/css/theme.css
+++ b/web/site/css/theme.css
@@ -172,6 +172,7 @@ a:active {
 	padding: 0;
 	padding-right: 5pt;
 	overflow: auto;
+	overscroll-behavior: contain;
 }
 #summary a {
 	color: #539CDD;