diff --git a/src/styles/world.css b/src/styles/world.css
index f328a8d..ea5cfc3 100644
--- a/src/styles/world.css
+++ b/src/styles/world.css
@@ -597,7 +597,8 @@
   /* A real scroll container (scrolled from script, never by the user), so
      sticky children and view timelines resolve against the reading window. */
   overflow: hidden;
-  overscroll-behavior: none;
+  /* Wheel and touch scrolling must chain through to the document, which
+     drives this container: no overscroll-behavior here. */
   isolation: isolate;
 }