[CRON] sync translated content

23 files changed, 123 insertions, 101 deletions

diff --git a/files/es/_redirects.txt b/files/es/_redirects.txt
index 751961e8eb..a1e4ec8825 100644
--- a/files/es/_redirects.txt
+++ b/files/es/_redirects.txt
@@ -1833,6 +1833,8 @@
 /es/docs/Web/API/Notifications_API/Usando_la_API_de_Notificaciones	/es/docs/Web/API/Notifications_API/Using_the_Notifications_API
 /es/docs/Web/API/ParentNode/childElementCount	/es/docs/Web/API/Element/childElementCount
 /es/docs/Web/API/ParentNode/children	/es/docs/orphaned/Web/API/ParentNode/children
+/es/docs/Web/API/ParentNode/firstElementChild	/es/docs/orphaned/Web/API/ParentNode/firstElementChild
+/es/docs/Web/API/ParentNode/lastElementChild	/es/docs/orphaned/Web/API/ParentNode/lastElementChild
 /es/docs/Web/API/Position	/es/docs/Web/API/GeolocationPosition
 /es/docs/Web/API/Push_API/Using_the_Push_API	/es/docs/conflicting/Web/API/Push_API
 /es/docs/Web/API/RandomSource	/es/docs/conflicting/Web/API/Crypto/getRandomValues
diff --git a/files/es/_wikihistory.json b/files/es/_wikihistory.json
index f2fcc7d5f9..15e74b85a8 100644
--- a/files/es/_wikihistory.json
+++ b/files/es/_wikihistory.json
@@ -5871,18 +5871,6 @@
       "Kyuoraku"
     ]
   },
-  "Web/API/ParentNode/firstElementChild": {
-    "modified": "2019-03-23T22:32:44.779Z",
-    "contributors": [
-      "Grijander81"
-    ]
-  },
-  "Web/API/ParentNode/lastElementChild": {
-    "modified": "2019-03-23T22:32:39.974Z",
-    "contributors": [
-      "Grijander81"
-    ]
-  },
   "Web/API/Payment_Request_API": {
     "modified": "2020-10-15T22:33:12.666Z",
     "contributors": [
@@ -23743,5 +23731,17 @@
       "aeroxmotion",
       "Grijander81"
     ]
+  },
+  "orphaned/Web/API/ParentNode/firstElementChild": {
+    "modified": "2019-03-23T22:32:44.779Z",
+    "contributors": [
+      "Grijander81"
+    ]
+  },
+  "orphaned/Web/API/ParentNode/lastElementChild": {
+    "modified": "2019-03-23T22:32:39.974Z",
+    "contributors": [
+      "Grijander81"
+    ]
   }
 }
\ No newline at end of file
diff --git a/files/es/web/api/parentnode/firstelementchild/index.html b/files/es/orphaned/web/api/parentnode/firstelementchild/index.html
index a9993d8ccf..c809951fdf 100644
--- a/files/es/web/api/parentnode/firstelementchild/index.html
+++ b/files/es/orphaned/web/api/parentnode/firstelementchild/index.html
@@ -1,7 +1,8 @@
 ---
 title: ParentNode.firstElementChild
-slug: Web/API/ParentNode/firstElementChild
+slug: orphaned/Web/API/ParentNode/firstElementChild
 translation_of: Web/API/ParentNode/firstElementChild
+original_slug: Web/API/ParentNode/firstElementChild
 ---
 <p>{{ APIRef("DOM") }}</p>
 
diff --git a/files/es/web/api/parentnode/lastelementchild/index.html b/files/es/orphaned/web/api/parentnode/lastelementchild/index.html
index c644b90db8..621e139fb8 100644
--- a/files/es/web/api/parentnode/lastelementchild/index.html
+++ b/files/es/orphaned/web/api/parentnode/lastelementchild/index.html
@@ -1,7 +1,8 @@
 ---
 title: ParentNode.lastElementChild
-slug: Web/API/ParentNode/lastElementChild
+slug: orphaned/Web/API/ParentNode/lastElementChild
 translation_of: Web/API/ParentNode/lastElementChild
+original_slug: Web/API/ParentNode/lastElementChild
 ---
 <p>{{ APIRef("DOM") }}</p>
 
diff --git a/files/fr/_redirects.txt b/files/fr/_redirects.txt
index 08f6d17707..4fdae5dc7a 100644
--- a/files/fr/_redirects.txt
+++ b/files/fr/_redirects.txt
@@ -898,7 +898,7 @@
 /fr/docs/DOM/DataTransfer	/fr/docs/Web/API/DataTransfer
 /fr/docs/DOM/Document.evaluate	/fr/docs/Web/API/Document/evaluate
 /fr/docs/DOM/Document.implementation	/fr/docs/Web/API/Document/implementation
-/fr/docs/DOM/Element.firstElementChild	/fr/docs/Web/API/ParentNode/firstElementChild
+/fr/docs/DOM/Element.firstElementChild	/fr/docs/orphaned/Web/API/ParentNode/firstElementChild
 /fr/docs/DOM/File	/fr/docs/Web/API/File
 /fr/docs/DOM/FileReader	/fr/docs/Web/API/FileReader
 /fr/docs/DOM/FileReader/FileList	/fr/docs/Web/API/FileList
@@ -3685,7 +3685,7 @@
 /fr/docs/Web/API/Element.clientWidth	/fr/docs/Web/API/Element/clientWidth
 /fr/docs/Web/API/Element.cloneNode	/fr/docs/Web/API/Node/cloneNode
 /fr/docs/Web/API/Element.dir	/fr/docs/Web/API/HTMLElement/dir
-/fr/docs/Web/API/Element.firstElementChild	/fr/docs/Web/API/ParentNode/firstElementChild
+/fr/docs/Web/API/Element.firstElementChild	/fr/docs/orphaned/Web/API/ParentNode/firstElementChild
 /fr/docs/Web/API/Element.focus	/fr/docs/Web/API/HTMLOrForeignElement/focus
 /fr/docs/Web/API/Element.getAttribute	/fr/docs/Web/API/Element/getAttribute
 /fr/docs/Web/API/Element.getAttributeNS	/fr/docs/Web/API/Element/getAttributeNS
@@ -3801,6 +3801,8 @@
 /fr/docs/Web/API/Node/rootNode	/fr/docs/conflicting/Web/API/Node/getRootNode
 /fr/docs/Web/API/ParentNode/childElementCount	/fr/docs/Web/API/Element/childElementCount
 /fr/docs/Web/API/ParentNode/children	/fr/docs/orphaned/Web/API/ParentNode/children
+/fr/docs/Web/API/ParentNode/firstElementChild	/fr/docs/orphaned/Web/API/ParentNode/firstElementChild
+/fr/docs/Web/API/ParentNode/lastElementChild	/fr/docs/orphaned/Web/API/ParentNode/lastElementChild
 /fr/docs/Web/API/PasswordCredential/additionalData	/fr/docs/conflicting/Web/API/PasswordCredential
 /fr/docs/Web/API/PasswordCredential/idName	/fr/docs/conflicting/Web/API/PasswordCredential_cbf7b306e83a3f58ff06bccf89637c12
 /fr/docs/Web/API/PasswordCredential/passwordName	/fr/docs/conflicting/Web/API/PasswordCredential_bc57d5dfa87242b4fb83497887124f41
diff --git a/files/fr/_wikihistory.json b/files/fr/_wikihistory.json
index 7691f6cf76..20fb17c8e3 100644
--- a/files/fr/_wikihistory.json
+++ b/files/fr/_wikihistory.json
@@ -11700,23 +11700,6 @@
       "ayshiff"
     ]
   },
-  "Web/API/ParentNode/firstElementChild": {
-    "modified": "2019-03-23T23:35:50.443Z",
-    "contributors": [
-      "pdonias",
-      "fscholz",
-      "teoli",
-      "khalid32",
-      "Delapouite",
-      "Beaver"
-    ]
-  },
-  "Web/API/ParentNode/lastElementChild": {
-    "modified": "2019-03-18T21:39:15.409Z",
-    "contributors": [
-      "loella16"
-    ]
-  },
   "Web/API/ParentNode/prepend": {
     "modified": "2020-10-15T22:02:32.998Z",
     "contributors": [
@@ -45335,5 +45318,22 @@
       "NemoNobobyPersonne",
       "xavierartot"
     ]
+  },
+  "orphaned/Web/API/ParentNode/firstElementChild": {
+    "modified": "2019-03-23T23:35:50.443Z",
+    "contributors": [
+      "pdonias",
+      "fscholz",
+      "teoli",
+      "khalid32",
+      "Delapouite",
+      "Beaver"
+    ]
+  },
+  "orphaned/Web/API/ParentNode/lastElementChild": {
+    "modified": "2019-03-18T21:39:15.409Z",
+    "contributors": [
+      "loella16"
+    ]
   }
 }
\ No newline at end of file
diff --git a/files/fr/web/api/parentnode/firstelementchild/index.html b/files/fr/orphaned/web/api/parentnode/firstelementchild/index.html
index 60983da28f..ae70e6aa66 100644
--- a/files/fr/web/api/parentnode/firstelementchild/index.html
+++ b/files/fr/orphaned/web/api/parentnode/firstelementchild/index.html
@@ -1,9 +1,10 @@
 ---
 title: Element.firstElementChild
-slug: Web/API/ParentNode/firstElementChild
+slug: orphaned/Web/API/ParentNode/firstElementChild
 tags:
   - Parcours arborescence
 translation_of: Web/API/ParentNode/firstElementChild
+original_slug: Web/API/ParentNode/firstElementChild
 ---
 <p>{{ gecko_minversion_header("1.9.1") }}</p>
 
diff --git a/files/fr/web/api/parentnode/lastelementchild/index.html b/files/fr/orphaned/web/api/parentnode/lastelementchild/index.html
index 152cd3694d..8698a44f2b 100644
--- a/files/fr/web/api/parentnode/lastelementchild/index.html
+++ b/files/fr/orphaned/web/api/parentnode/lastelementchild/index.html
@@ -1,6 +1,6 @@
 ---
 title: ParentNode.lastElementChild
-slug: Web/API/ParentNode/lastElementChild
+slug: orphaned/Web/API/ParentNode/lastElementChild
 tags:
   - API
   - DOM
@@ -8,6 +8,7 @@ tags:
   - Propriétés
   - parent
 translation_of: Web/API/ParentNode/lastElementChild
+original_slug: Web/API/ParentNode/lastElementChild
 ---
 <p>{{ APIRef("DOM") }}</p>
 
diff --git a/files/it/_redirects.txt b/files/it/_redirects.txt
index 4a4e9cfcb4..7a2568c2f6 100644
--- a/files/it/_redirects.txt
+++ b/files/it/_redirects.txt
@@ -528,6 +528,8 @@
 /it/docs/Web/API/Node/namespaceURI	/it/docs/Web/API/Element/namespaceURI
 /it/docs/Web/API/Node/prefix	/it/docs/Web/API/Element/prefix
 /it/docs/Web/API/ParentNode/children	/it/docs/orphaned/Web/API/ParentNode/children
+/it/docs/Web/API/ParentNode/firstElementChild	/it/docs/orphaned/Web/API/ParentNode/firstElementChild
+/it/docs/Web/API/ParentNode/lastElementChild	/it/docs/orphaned/Web/API/ParentNode/lastElementChild
 /it/docs/Web/API/Position	/it/docs/Web/API/GeolocationPosition
 /it/docs/Web/API/URLUtils	/it/docs/orphaned/Web/API/HTMLHyperlinkElementUtils
 /it/docs/Web/API/WindowTimers	/it/docs/conflicting/Web/API/WindowOrWorkerGlobalScope
diff --git a/files/it/_wikihistory.json b/files/it/_wikihistory.json
index d79fc797b5..1292ca9ae5 100644
--- a/files/it/_wikihistory.json
+++ b/files/it/_wikihistory.json
@@ -1643,18 +1643,6 @@
       "ExE-Boss"
     ]
   },
-  "Web/API/ParentNode/firstElementChild": {
-    "modified": "2020-10-15T22:17:20.523Z",
-    "contributors": [
-      "IsibisiDev"
-    ]
-  },
-  "Web/API/ParentNode/lastElementChild": {
-    "modified": "2020-10-15T22:17:20.462Z",
-    "contributors": [
-      "IsibisiDev"
-    ]
-  },
   "Web/API/Performance": {
     "modified": "2020-10-15T22:10:46.200Z",
     "contributors": [
@@ -5994,5 +5982,17 @@
     "contributors": [
       "IsibisiDev"
     ]
+  },
+  "orphaned/Web/API/ParentNode/firstElementChild": {
+    "modified": "2020-10-15T22:17:20.523Z",
+    "contributors": [
+      "IsibisiDev"
+    ]
+  },
+  "orphaned/Web/API/ParentNode/lastElementChild": {
+    "modified": "2020-10-15T22:17:20.462Z",
+    "contributors": [
+      "IsibisiDev"
+    ]
   }
 }
\ No newline at end of file
diff --git a/files/it/web/api/parentnode/firstelementchild/index.html b/files/it/orphaned/web/api/parentnode/firstelementchild/index.html
index 472b7737a3..4a76fb11dd 100644
--- a/files/it/web/api/parentnode/firstelementchild/index.html
+++ b/files/it/orphaned/web/api/parentnode/firstelementchild/index.html
@@ -1,12 +1,13 @@
 ---
 title: ParentNode.firstElementChild
-slug: Web/API/ParentNode/firstElementChild
+slug: orphaned/Web/API/ParentNode/firstElementChild
 tags:
   - API
   - DOM
   - ParentNode
   - Proprietà
 translation_of: Web/API/ParentNode/firstElementChild
+original_slug: Web/API/ParentNode/firstElementChild
 ---
 <p>{{ APIRef("DOM") }}</p>
 
diff --git a/files/it/web/api/parentnode/lastelementchild/index.html b/files/it/orphaned/web/api/parentnode/lastelementchild/index.html
index 006a3a316d..d1876d8164 100644
--- a/files/it/web/api/parentnode/lastelementchild/index.html
+++ b/files/it/orphaned/web/api/parentnode/lastelementchild/index.html
@@ -1,12 +1,13 @@
 ---
 title: ParentNode.lastElementChild
-slug: Web/API/ParentNode/lastElementChild
+slug: orphaned/Web/API/ParentNode/lastElementChild
 tags:
   - API
   - DOM
   - ParentNode
   - Proprietà
 translation_of: Web/API/ParentNode/lastElementChild
+original_slug: Web/API/ParentNode/lastElementChild
 ---
 <p>{{ APIRef("DOM") }}</p>
 
diff --git a/files/ru/_redirects.txt b/files/ru/_redirects.txt
index 1ccfb65842..6e5c5df487 100644
--- a/files/ru/_redirects.txt
+++ b/files/ru/_redirects.txt
@@ -455,6 +455,8 @@
 /ru/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling	/ru/docs/Web/API/Element/previousElementSibling
 /ru/docs/Web/API/ParentNode/childElementCount	/ru/docs/Web/API/Element/childElementCount
 /ru/docs/Web/API/ParentNode/children	/ru/docs/orphaned/Web/API/ParentNode/children
+/ru/docs/Web/API/ParentNode/firstElementChild	/ru/docs/orphaned/Web/API/ParentNode/firstElementChild
+/ru/docs/Web/API/ParentNode/lastElementChild	/ru/docs/orphaned/Web/API/ParentNode/lastElementChild
 /ru/docs/Web/API/PositionError	/ru/docs/Web/API/GeolocationPositionError
 /ru/docs/Web/API/Push_API/Using_the_Push_API	/ru/docs/conflicting/Web/API/Push_API
 /ru/docs/Web/API/RandomSource	/ru/docs/conflicting/Web/API/Crypto/getRandomValues
diff --git a/files/ru/_wikihistory.json b/files/ru/_wikihistory.json
index c6e56b4a6c..a4231ddeba 100644
--- a/files/ru/_wikihistory.json
+++ b/files/ru/_wikihistory.json
@@ -6828,20 +6828,6 @@
       "madebydima"
     ]
   },
-  "Web/API/ParentNode/firstElementChild": {
-    "modified": "2019-08-28T05:08:54.083Z",
-    "contributors": [
-      "Yialo",
-      "besedin-art"
-    ]
-  },
-  "Web/API/ParentNode/lastElementChild": {
-    "modified": "2019-08-28T05:09:39.314Z",
-    "contributors": [
-      "Yialo",
-      "Waakym"
-    ]
-  },
   "Web/API/ParentNode/prepend": {
     "modified": "2020-10-15T22:20:07.127Z",
     "contributors": [
@@ -25988,5 +25974,19 @@
       "evgkit",
       "In4in"
     ]
+  },
+  "orphaned/Web/API/ParentNode/firstElementChild": {
+    "modified": "2019-08-28T05:08:54.083Z",
+    "contributors": [
+      "Yialo",
+      "besedin-art"
+    ]
+  },
+  "orphaned/Web/API/ParentNode/lastElementChild": {
+    "modified": "2019-08-28T05:09:39.314Z",
+    "contributors": [
+      "Yialo",
+      "Waakym"
+    ]
   }
 }
\ No newline at end of file
diff --git a/files/ru/web/api/parentnode/firstelementchild/index.html b/files/ru/orphaned/web/api/parentnode/firstelementchild/index.html
index 9a7275fcc4..21fb90f963 100644
--- a/files/ru/web/api/parentnode/firstelementchild/index.html
+++ b/files/ru/orphaned/web/api/parentnode/firstelementchild/index.html
@@ -1,6 +1,6 @@
 ---
 title: ParentNode.firstElementChild
-slug: Web/API/ParentNode/firstElementChild
+slug: orphaned/Web/API/ParentNode/firstElementChild
 tags:
   - API
   - DOM
@@ -8,6 +8,7 @@ tags:
   - Property
   - Reference
 translation_of: Web/API/ParentNode/firstElementChild
+original_slug: Web/API/ParentNode/firstElementChild
 ---
 <p>{{ APIRef("DOM") }}</p>
 
diff --git a/files/ru/web/api/parentnode/lastelementchild/index.html b/files/ru/orphaned/web/api/parentnode/lastelementchild/index.html
index d625dc316f..8df658ceb5 100644
--- a/files/ru/web/api/parentnode/lastelementchild/index.html
+++ b/files/ru/orphaned/web/api/parentnode/lastelementchild/index.html
@@ -1,6 +1,6 @@
 ---
 title: ParentNode.lastElementChild
-slug: Web/API/ParentNode/lastElementChild
+slug: orphaned/Web/API/ParentNode/lastElementChild
 tags:
   - API
   - DOM
@@ -8,6 +8,7 @@ tags:
   - Property
   - Reference
 translation_of: Web/API/ParentNode/lastElementChild
+original_slug: Web/API/ParentNode/lastElementChild
 ---
 <p>{{ APIRef("DOM") }}</p>
 
diff --git a/files/zh-cn/_redirects.txt b/files/zh-cn/_redirects.txt
index e56379facf..5b42e7ce28 100644
--- a/files/zh-cn/_redirects.txt
+++ b/files/zh-cn/_redirects.txt
@@ -269,8 +269,8 @@
 /zh-CN/docs/DOM/Document.querySelectorAll	/zh-CN/docs/Web/API/Document/querySelectorAll
 /zh-CN/docs/DOM/Document.scripts	/zh-CN/docs/Web/API/Document/scripts
 /zh-CN/docs/DOM/Element.children	/zh-CN/docs/orphaned/Web/API/ParentNode/children
-/zh-CN/docs/DOM/Element.firstElementChild	/zh-CN/docs/Web/API/ParentNode/firstElementChild
-/zh-CN/docs/DOM/Element.lastElementChild	/zh-CN/docs/Web/API/ParentNode/lastElementChild
+/zh-CN/docs/DOM/Element.firstElementChild	/zh-CN/docs/orphaned/Web/API/ParentNode/firstElementChild
+/zh-CN/docs/DOM/Element.lastElementChild	/zh-CN/docs/orphaned/Web/API/ParentNode/lastElementChild
 /zh-CN/docs/DOM/Element.nextElementSibling	/zh-CN/docs/Web/API/Element/nextElementSibling
 /zh-CN/docs/DOM/Element.querySelectorAll	/zh-CN/docs/Web/API/Element/querySelectorAll
 /zh-CN/docs/DOM/EventTarget	/zh-CN/docs/Web/API/EventTarget
@@ -1726,10 +1726,12 @@
 /zh-CN/docs/Web/API/OfflineAudioContext/complete	/zh-CN/docs/Web/API/OfflineAudioContext/complete_event
 /zh-CN/docs/Web/API/ParentNode.childElementCount	/zh-CN/docs/Web/API/Element/childElementCount
 /zh-CN/docs/Web/API/ParentNode.children	/zh-CN/docs/orphaned/Web/API/ParentNode/children
-/zh-CN/docs/Web/API/ParentNode.firstElementChild	/zh-CN/docs/Web/API/ParentNode/firstElementChild
-/zh-CN/docs/Web/API/ParentNode.lastElementChild	/zh-CN/docs/Web/API/ParentNode/lastElementChild
+/zh-CN/docs/Web/API/ParentNode.firstElementChild	/zh-CN/docs/orphaned/Web/API/ParentNode/firstElementChild
+/zh-CN/docs/Web/API/ParentNode.lastElementChild	/zh-CN/docs/orphaned/Web/API/ParentNode/lastElementChild
 /zh-CN/docs/Web/API/ParentNode/childElementCount	/zh-CN/docs/Web/API/Element/childElementCount
 /zh-CN/docs/Web/API/ParentNode/children	/zh-CN/docs/orphaned/Web/API/ParentNode/children
+/zh-CN/docs/Web/API/ParentNode/firstElementChild	/zh-CN/docs/orphaned/Web/API/ParentNode/firstElementChild
+/zh-CN/docs/Web/API/ParentNode/lastElementChild	/zh-CN/docs/orphaned/Web/API/ParentNode/lastElementChild
 /zh-CN/docs/Web/API/Performance.now()	/zh-CN/docs/Web/API/Performance/now
 /zh-CN/docs/Web/API/Performance/内存	/zh-CN/docs/Web/API/Performance/memory
 /zh-CN/docs/Web/API/Position	/zh-CN/docs/Web/API/GeolocationPosition
diff --git a/files/zh-cn/_wikihistory.json b/files/zh-cn/_wikihistory.json
index 16eb345f2b..917102ab9b 100644
--- a/files/zh-cn/_wikihistory.json
+++ b/files/zh-cn/_wikihistory.json
@@ -16794,29 +16794,6 @@
       "ziyunfei"
     ]
   },
-  "Web/API/ParentNode/firstElementChild": {
-    "modified": "2020-10-15T21:06:48.165Z",
-    "contributors": [
-      "igoryaodev",
-      "imwangpan",
-      "gwh1312",
-      "RainSlide",
-      "xgqfrms-GitHub",
-      "teoli",
-      "AlexChao",
-      "ziyunfei"
-    ]
-  },
-  "Web/API/ParentNode/lastElementChild": {
-    "modified": "2020-10-15T21:05:51.837Z",
-    "contributors": [
-      "RainSlide",
-      "xgqfrms-GitHub",
-      "teoli",
-      "khalid32",
-      "ziyunfei"
-    ]
-  },
   "Web/API/ParentNode/prepend": {
     "modified": "2020-10-15T21:52:00.307Z",
     "contributors": [
@@ -50798,5 +50775,28 @@
       "ziyunfei",
       "AlexChao"
     ]
+  },
+  "orphaned/Web/API/ParentNode/firstElementChild": {
+    "modified": "2020-10-15T21:06:48.165Z",
+    "contributors": [
+      "igoryaodev",
+      "imwangpan",
+      "gwh1312",
+      "RainSlide",
+      "xgqfrms-GitHub",
+      "teoli",
+      "AlexChao",
+      "ziyunfei"
+    ]
+  },
+  "orphaned/Web/API/ParentNode/lastElementChild": {
+    "modified": "2020-10-15T21:05:51.837Z",
+    "contributors": [
+      "RainSlide",
+      "xgqfrms-GitHub",
+      "teoli",
+      "khalid32",
+      "ziyunfei"
+    ]
   }
 }
\ No newline at end of file
diff --git a/files/zh-cn/web/api/parentnode/firstelementchild/index.html b/files/zh-cn/orphaned/web/api/parentnode/firstelementchild/index.html
index 1ff4b6f06f..8e658b4adc 100644
--- a/files/zh-cn/web/api/parentnode/firstelementchild/index.html
+++ b/files/zh-cn/orphaned/web/api/parentnode/firstelementchild/index.html
@@ -1,7 +1,8 @@
 ---
 title: Element.firstElementChild
-slug: Web/API/ParentNode/firstElementChild
+slug: orphaned/Web/API/ParentNode/firstElementChild
 translation_of: Web/API/ParentNode/firstElementChild
+original_slug: Web/API/ParentNode/firstElementChild
 ---
 <p>{{ APIRef("DOM") }}</p>
 
diff --git a/files/zh-cn/web/api/parentnode/lastelementchild/index.html b/files/zh-cn/orphaned/web/api/parentnode/lastelementchild/index.html
index 57481ff762..566d3a1976 100644
--- a/files/zh-cn/web/api/parentnode/lastelementchild/index.html
+++ b/files/zh-cn/orphaned/web/api/parentnode/lastelementchild/index.html
@@ -1,7 +1,8 @@
 ---
 title: Element.lastElementChild
-slug: Web/API/ParentNode/lastElementChild
+slug: orphaned/Web/API/ParentNode/lastElementChild
 translation_of: Web/API/ParentNode/lastElementChild
+original_slug: Web/API/ParentNode/lastElementChild
 ---
 <p>{{ APIRef("DOM") }}</p>
 
diff --git a/files/zh-tw/_redirects.txt b/files/zh-tw/_redirects.txt
index 24c794b2b8..49ffb976ba 100644
--- a/files/zh-tw/_redirects.txt
+++ b/files/zh-tw/_redirects.txt
@@ -577,6 +577,7 @@
 /zh-TW/docs/Web/API/Node/innerText	/zh-TW/docs/Web/API/HTMLElement/innerText
 /zh-TW/docs/Web/API/NonDocumentTypeChildNode	/zh-TW/docs/conflicting/Web/API/Element
 /zh-TW/docs/Web/API/ParentNode/children	/zh-TW/docs/orphaned/Web/API/ParentNode/children
+/zh-TW/docs/Web/API/ParentNode/firstElementChild	/zh-TW/docs/orphaned/Web/API/ParentNode/firstElementChild
 /zh-TW/docs/Web/API/Performance.timing	/zh-TW/docs/Web/API/Performance/timing
 /zh-TW/docs/Web/API/Position	/zh-TW/docs/Web/API/GeolocationPosition
 /zh-TW/docs/Web/API/Position/coords	/zh-TW/docs/Web/API/GeolocationPosition/coords
diff --git a/files/zh-tw/_wikihistory.json b/files/zh-tw/_wikihistory.json
index f702d4e4df..e287862822 100644
--- a/files/zh-tw/_wikihistory.json
+++ b/files/zh-tw/_wikihistory.json
@@ -4233,12 +4233,6 @@
       "jackblackevo"
     ]
   },
-  "Web/API/ParentNode/firstElementChild": {
-    "modified": "2020-10-15T22:25:38.862Z",
-    "contributors": [
-      "ianchen0119"
-    ]
-  },
   "Web/API/PaymentRequest": {
     "modified": "2020-10-15T22:13:15.817Z",
     "contributors": [
@@ -9152,5 +9146,11 @@
     "contributors": [
       "jackblackevo"
     ]
+  },
+  "orphaned/Web/API/ParentNode/firstElementChild": {
+    "modified": "2020-10-15T22:25:38.862Z",
+    "contributors": [
+      "ianchen0119"
+    ]
   }
 }
\ No newline at end of file
diff --git a/files/zh-tw/web/api/parentnode/firstelementchild/index.html b/files/zh-tw/orphaned/web/api/parentnode/firstelementchild/index.html
index 4fa9722123..ca33d60793 100644
--- a/files/zh-tw/web/api/parentnode/firstelementchild/index.html
+++ b/files/zh-tw/orphaned/web/api/parentnode/firstelementchild/index.html
@@ -1,7 +1,8 @@
 ---
 title: ParentNode.firstElementChild
-slug: Web/API/ParentNode/firstElementChild
+slug: orphaned/Web/API/ParentNode/firstElementChild
 translation_of: Web/API/ParentNode/firstElementChild
+original_slug: Web/API/ParentNode/firstElementChild
 ---
 <p>{{ APIRef("DOM") }}</p>