diff --git a/lib/js/handorgel.js b/lib/js/handorgel.js
index 742a5b9..1af7934 100644
--- a/lib/js/handorgel.js
+++ b/lib/js/handorgel.js
@@ -553,8 +553,8 @@ Handorgel.defaultOptions = {
   initialOpenAttribute: 'data-open',
   initialOpenTransition: true,
   initialOpenTransitionDelay: 200,
-  headerElements: '.handorgel__header',
-  contentElements: '.handorgel__content',
+  headerElements: ':scope > .handorgel__header',
+  contentElements: ':scope > .handorgel__content',
   headerOpenClass: 'handorgel__header--open',
   contentOpenClass: 'handorgel__content--open',
   headerOpenedClass: 'handorgel__header--opened',