diff --git a/src/platforms/GitHub/hooks/useGitHubCodeFold.tsx b/src/platforms/GitHub/hooks/useGitHubCodeFold.tsx
index 6bb0641..9d6a4e3 100644
--- a/src/platforms/GitHub/hooks/useGitHubCodeFold.tsx
+++ b/src/platforms/GitHub/hooks/useGitHubCodeFold.tsx
@@ -13,6 +13,10 @@ const selectorOfLineContent = `.blob-code`
 
 const theCSSClassForToggleElementOnActive = 'gitako-code-fold-active'
 function init() {
+  document.querySelectorAll(tableSelector).forEach(processTable)
+}
+
+function processTable(table: Element) {
   type LineNumber = number // alias
   const blocks: LineNumber[] = [] // startLine -> exclusiveEndLine
   /**
@@ -34,8 +38,7 @@ function init() {
    * 5
    */
 
-  const table = document.querySelector(tableSelector)
-  const lineElements = Array.from(document.querySelectorAll([tableSelector, 'tr'].join(' ')))
+  const lineElements = Array.from(table.querySelectorAll('tr'))
   if (!table || !lineElements.length) return
   if (table.classList.contains(theCSSClassMark)) {
     if (table.classList.contains(theCSSClassMarkWhenDisabled)) {
@@ -124,7 +127,7 @@ function init() {
       if (e.target.classList.contains(theCSSClassForToggleElement)) {
         const tr = e.target.parentElement?.parentElement
         if (tr) {
-          toggleLine(lineElements.indexOf(tr))
+          toggleLine(lineElements.indexOf(tr as HTMLTableRowElement))
           e.stopPropagation()
         }
       }
@@ -133,8 +136,9 @@ function init() {
 }
 
 function cancelToggleFeature() {
-  const table = document.querySelector(tableSelector)
-  table?.classList.add(theCSSClassMarkWhenDisabled)
+  document
+    .querySelectorAll(tableSelector)
+    .forEach(table => table.classList.add(theCSSClassMarkWhenDisabled))
 }
 
 function getTextLevel(text: string) {