diff --git a/templates/app.js b/templates/app.js
index df7f187..cc7dc92 100644
--- a/templates/app.js
+++ b/templates/app.js
@@ -3,15 +3,19 @@ document.addEventListener('DOMContentLoaded', function() {
 });
 
 function toggleSummary() {
-  const openBtn = document.querySelector('.open-js');
-  const closeBtn = document.querySelector('.close-js');
+  const openBtns = document.querySelectorAll('.open-js');
+  const closeBtns = document.querySelectorAll('.close-js');
   const detailElements = document.querySelectorAll('details');
 
-  openBtn.addEventListener('click', function(){
-    detailElements.forEach((detail) =>  detail.setAttribute("open", ""));
+  openBtns.forEach(function(openBtn) {
+    openBtn.addEventListener('click', function(){
+      detailElements.forEach((detail) =>  detail.setAttribute("open", ""));
+    });
   });
 
-  closeBtn.addEventListener('click', function(){
-    detailElements.forEach((detail) =>  detail.removeAttribute("open", ""));
+  closeBtns.forEach(function(closeBtn) {
+    closeBtn.addEventListener('click', function(){
+      detailElements.forEach((detail) =>  detail.removeAttribute("open", ""));
+    });
   });
 }