33 files changed, 117 insertions, 84 deletions
diff --git a/files/de/_redirects.txt b/files/de/_redirects.txt
index 0bdaf0f0ef..6bc5c87499 100644
--- a/files/de/_redirects.txt
+++ b/files/de/_redirects.txt
@@ -453,6 +453,7 @@
 /de/docs/Web/API/WebGL_API/Tutorial/Texturen_in_WebGL_verwenden	/de/docs/Web/API/WebGL_API/Tutorial/Using_textures_in_WebGL
 /de/docs/Web/API/WebSocket/onclose	/de/docs/Web/API/WebSocket/close_event
 /de/docs/Web/API/Window.alert	/de/docs/Web/API/Window/alert
+/de/docs/Web/API/Window/ondevicemotion	/de/docs/Web/API/Window/devicemotion_event
 /de/docs/Web/API/Window/performance	/de/docs/Web/API/performance_property
 /de/docs/Web/API/Window/setTimeout	/de/docs/Web/API/setTimeout
 /de/docs/Web/API/WindowBase64	/de/docs/Web/API/WindowOrWorkerGlobalScope
diff --git a/files/de/_wikihistory.json b/files/de/_wikihistory.json
index 0303027ece..0cee929ea0 100644
--- a/files/de/_wikihistory.json
+++ b/files/de/_wikihistory.json
@@ -4018,6 +4018,13 @@
       "AndreasWebdev"
     ]
   },
+  "Web/API/Window/devicemotion_event": {
+    "modified": "2019-03-18T21:15:10.920Z",
+    "contributors": [
+      "clepsydra",
+      "m9898"
+    ]
+  },
   "Web/API/Window/dump": {
     "modified": "2019-03-23T23:34:35.263Z",
     "contributors": [
@@ -4068,13 +4075,6 @@
       "AdamNiezielinski"
     ]
   },
-  "Web/API/Window/ondevicemotion": {
-    "modified": "2019-03-18T21:15:10.920Z",
-    "contributors": [
-      "clepsydra",
-      "m9898"
-    ]
-  },
   "Web/API/Window/openDialog": {
     "modified": "2020-11-15T17:34:16.679Z",
     "contributors": [
diff --git a/files/de/web/api/window/ondevicemotion/index.html b/files/de/web/api/window/devicemotion_event/index.html
index 0e39638929..8eccaab765 100644
--- a/files/de/web/api/window/ondevicemotion/index.html
+++ b/files/de/web/api/window/devicemotion_event/index.html
@@ -1,6 +1,6 @@
 ---
 title: Window.ondevicemotion
-slug: Web/API/Window/ondevicemotion
+slug: Web/API/Window/devicemotion_event
 tags:
   - API
   - Ausrichtung
@@ -10,6 +10,7 @@ tags:
   - Firefox OS
   - Geräteausrichtung
 translation_of: Web/API/Window/ondevicemotion
+original_slug: Web/API/Window/ondevicemotion
 ---
 <p>{{ ApiRef() }}</p>
 
diff --git a/files/es/_redirects.txt b/files/es/_redirects.txt
index 7465e846fa..36353e53fe 100644
--- a/files/es/_redirects.txt
+++ b/files/es/_redirects.txt
@@ -1114,7 +1114,8 @@
 /es/docs/Learn/CSS/First_steps/Como_funciona_CSS	/es/docs/Learn/CSS/First_steps/How_CSS_works
 /es/docs/Learn/CSS/First_steps/Como_se_estructura_CSS	/es/docs/Learn/CSS/First_steps/How_CSS_is_structured
 /es/docs/Learn/CSS/First_steps/Qué_es_CSS	/es/docs/Learn/CSS/First_steps/What_is_CSS
-/es/docs/Learn/CSS/First_steps/Usa_tu_nuevo_conocimiento	/es/docs/Learn/CSS/First_steps/Using_your_new_knowledge
+/es/docs/Learn/CSS/First_steps/Usa_tu_nuevo_conocimiento	/es/docs/Learn/CSS/First_steps/Styling_a_biography_page
+/es/docs/Learn/CSS/First_steps/Using_your_new_knowledge	/es/docs/Learn/CSS/First_steps/Styling_a_biography_page
 /es/docs/Learn/CSS/Introduction_to_CSS	/en-US/docs/Learn/CSS/First_steps
 /es/docs/Learn/CSS/Introduction_to_CSS/Cascada_y_herencia	/en-US/docs/Learn/CSS/Building_blocks/Cascade_and_inheritance
 /es/docs/Learn/CSS/Introduction_to_CSS/Combinaciones_y_selectores_multiples	/en-US/docs/Learn/CSS/Building_blocks/Selectors/Combinators
diff --git a/files/es/_wikihistory.json b/files/es/_wikihistory.json
index 7cbcbe886f..9767ca6830 100644
--- a/files/es/_wikihistory.json
+++ b/files/es/_wikihistory.json
@@ -2099,7 +2099,7 @@
       "editorUOC"
     ]
   },
-  "Learn/CSS/First_steps/Using_your_new_knowledge": {
+  "Learn/CSS/First_steps/Styling_a_biography_page": {
     "modified": "2020-08-23T19:45:30.596Z",
     "contributors": [
       "capitanzealot",
diff --git a/files/es/learn/css/first_steps/using_your_new_knowledge/index.html b/files/es/learn/css/first_steps/styling_a_biography_page/index.html
index 927a5798b8..b5a95600bd 100644
--- a/files/es/learn/css/first_steps/using_your_new_knowledge/index.html
+++ b/files/es/learn/css/first_steps/styling_a_biography_page/index.html
@@ -1,12 +1,12 @@
 ---
 title: Usa tu nuevo conocimiento
-slug: Learn/CSS/First_steps/Using_your_new_knowledge
+slug: Learn/CSS/First_steps/Styling_a_biography_page
 tags:
   - Aprendizaje
   - CSS
   - Principiante
 translation_of: Learn/CSS/First_steps/Using_your_new_knowledge
-original_slug: Learn/CSS/First_steps/Usa_tu_nuevo_conocimiento
+original_slug: Learn/CSS/First_steps/Using_your_new_knowledge
 ---
 <p>{{LearnSidebar}}{{PreviousMenu("Learn/CSS/First_steps/How_CSS_works", "Learn/CSS/First_steps")}}</p>
 
diff --git a/files/fr/_redirects.txt b/files/fr/_redirects.txt
index a8bf44313e..8b9a1db89b 100644
--- a/files/fr/_redirects.txt
+++ b/files/fr/_redirects.txt
@@ -2997,6 +2997,7 @@
 /fr/docs/Le_principe_de_fermeture_en_JavaScript:Résolution_d'identifiants,_contextes_d'exécution_et_visibilité_des_variables	/fr/docs/Web/JavaScript/Closures
 /fr/docs/Le_principe_de_fermeture_en_JavaScript:Utilisation_des_fermetures	/fr/docs/Web/JavaScript/Closures
 /fr/docs/Learn/CSS/First_steps/Qu_est_ce_que_CSS	/fr/docs/Learn/CSS/First_steps/What_is_CSS
+/fr/docs/Learn/CSS/First_steps/Using_your_new_knowledge	/fr/docs/Learn/CSS/First_steps/Styling_a_biography_page
 /fr/docs/Learn/CSS/Styling_text/Mise_en_forme_des_liens	/fr/docs/Learn/CSS/Styling_text/Styling_links
 /fr/docs/Learn/CSS/Styling_text/initiation-mise-en-forme-du-texte	/fr/docs/Learn/CSS/Styling_text/Fundamentals
 /fr/docs/Learn/Index	/fr/docs/conflicting/Learn
diff --git a/files/fr/_wikihistory.json b/files/fr/_wikihistory.json
index 2f7310066a..fe0a8da655 100644
--- a/files/fr/_wikihistory.json
+++ b/files/fr/_wikihistory.json
@@ -3950,7 +3950,7 @@
       "smeden-lod"
     ]
   },
-  "Learn/CSS/First_steps/Using_your_new_knowledge": {
+  "Learn/CSS/First_steps/Styling_a_biography_page": {
     "modified": "2020-07-16T22:28:03.815Z",
     "contributors": [
       "SphinxKnight",
diff --git a/files/fr/learn/css/first_steps/using_your_new_knowledge/index.md b/files/fr/learn/css/first_steps/styling_a_biography_page/index.md
index c24d68d80b..808c1ee711 100644
--- a/files/fr/learn/css/first_steps/using_your_new_knowledge/index.md
+++ b/files/fr/learn/css/first_steps/styling_a_biography_page/index.md
@@ -1,12 +1,13 @@
 ---
 title: Mettre en œuvre vos connaissances
-slug: Learn/CSS/First_steps/Using_your_new_knowledge
+slug: Learn/CSS/First_steps/Styling_a_biography_page
 tags:
   - Apprendre
   - CSS
   - Débutant
   - Playground
 translation_of: Learn/CSS/First_steps/Using_your_new_knowledge
+original_slug: Learn/CSS/First_steps/Using_your_new_knowledge
 ---
 {{LearnSidebar}}{{PreviousMenu("Learn/CSS/First_steps/How_CSS_works", "Learn/CSS/First_steps")}}
 
diff --git a/files/ja/_redirects.txt b/files/ja/_redirects.txt
index 2af45584f1..59f25a6bab 100644
--- a/files/ja/_redirects.txt
+++ b/files/ja/_redirects.txt
@@ -2633,6 +2633,7 @@
 /ja/docs/JavaScript_技術概説	/ja/docs/Web/JavaScript/JavaScript_technologies_overview
 /ja/docs/Key-navigable_custom_DHTML_widgets	/ja/docs/orphaned/Key-navigable_custom_DHTML_widgets
 /ja/docs/Learn/CSS/Building_blocks/セレクタ	/ja/docs/Learn/CSS/Building_blocks/Selectors
+/ja/docs/Learn/CSS/First_steps/Using_your_new_knowledge	/ja/docs/Learn/CSS/First_steps/Styling_a_biography_page
 /ja/docs/Learn/CSS/Introduction_to_CSS	/ja/docs/Learn/CSS/First_steps
 /ja/docs/Learn/CSS/Introduction_to_CSS/Attribute_selectors	/ja/docs/Learn/CSS/Building_blocks/Selectors/Attribute_selectors
 /ja/docs/Learn/CSS/Introduction_to_CSS/Box_model	/ja/docs/Learn/CSS/Building_blocks/The_box_model
@@ -3199,6 +3200,10 @@
 /ja/docs/Web/API/MediaRecorder_API	/ja/docs/Web/API/MediaStream_Recording_API
 /ja/docs/Web/API/MediaStream/onaddtrack	/ja/docs/Web/API/MediaStream/addtrack_event
 /ja/docs/Web/API/MediaStreamConstraints	/ja/docs/conflicting/Web/API/MediaDevices/getUserMedia
+/ja/docs/Web/API/MediaStreamTrack/onended	/ja/docs/Web/API/MediaStreamTrack/ended_event
+/ja/docs/Web/API/MediaStreamTrack/onmute	/ja/docs/conflicting/Web/API/MediaStreamTrack/mute_event
+/ja/docs/Web/API/MediaStreamTrack/onoverconstrained	/ja/docs/Web/API/MediaStreamTrack/overconstrained_event
+/ja/docs/Web/API/MediaStreamTrack/onunmute	/ja/docs/conflicting/Web/API/MediaStreamTrack/unmute_event
 /ja/docs/Web/API/MouseEvent/which	/ja/docs/Web/API/UIEvent/which
 /ja/docs/Web/API/Navigator.getUserMedia	/ja/docs/Web/API/Navigator/getUserMedia
 /ja/docs/Web/API/Navigator/Online_and_offline_events	/ja/docs/conflicting/Web/API/Navigator/onLine
@@ -3364,6 +3369,7 @@
 /ja/docs/Web/API/Window/onblur	/ja/docs/Web/API/GlobalEventHandlers/onblur
 /ja/docs/Web/API/Window/onchange	/ja/docs/Web/API/GlobalEventHandlers/onchange
 /ja/docs/Web/API/Window/onclick	/ja/docs/Web/API/GlobalEventHandlers/onclick
+/ja/docs/Web/API/Window/ondevicemotion	/ja/docs/conflicting/Web/API/Window/devicemotion_event
 /ja/docs/Web/API/Window/ondeviceproximity	/ja/docs/orphaned/Web/API/Window/ondeviceproximity
 /ja/docs/Web/API/Window/onfocus	/ja/docs/Web/API/GlobalEventHandlers/onfocus
 /ja/docs/Web/API/Window/ongamepadconnected	/ja/docs/conflicting/Web/API/Window/gamepadconnected_event
diff --git a/files/ja/_wikihistory.json b/files/ja/_wikihistory.json
index 7c0aa15437..3062576ebe 100644
--- a/files/ja/_wikihistory.json
+++ b/files/ja/_wikihistory.json
@@ -4231,7 +4231,7 @@
       "snakada"
     ]
   },
-  "Learn/CSS/First_steps/Using_your_new_knowledge": {
+  "Learn/CSS/First_steps/Styling_a_biography_page": {
     "modified": "2020-07-16T22:28:04.164Z",
     "contributors": [
       "Uemmra3",
@@ -18215,6 +18215,12 @@
       "e53e04ac"
     ]
   },
+  "Web/API/MediaStreamTrack/ended_event": {
+    "modified": "2019-03-18T21:45:14.196Z",
+    "contributors": [
+      "e53e04ac"
+    ]
+  },
   "Web/API/MediaStreamTrack/id": {
     "modified": "2020-10-15T22:00:11.011Z",
     "contributors": [
@@ -18247,31 +18253,12 @@
       "e53e04ac"
     ]
   },
-  "Web/API/MediaStreamTrack/onended": {
-    "modified": "2019-03-18T21:45:14.196Z",
-    "contributors": [
-      "e53e04ac"
-    ]
-  },
-  "Web/API/MediaStreamTrack/onmute": {
-    "modified": "2020-10-15T22:00:10.968Z",
-    "contributors": [
-      "YujiSoftware",
-      "e53e04ac"
-    ]
-  },
-  "Web/API/MediaStreamTrack/onoverconstrained": {
+  "Web/API/MediaStreamTrack/overconstrained_event": {
     "modified": "2019-03-18T21:45:17.038Z",
     "contributors": [
       "e53e04ac"
     ]
   },
-  "Web/API/MediaStreamTrack/onunmute": {
-    "modified": "2019-03-18T21:45:15.060Z",
-    "contributors": [
-      "e53e04ac"
-    ]
-  },
   "Web/API/MediaStreamTrack/readyState": {
     "modified": "2019-03-18T21:44:58.979Z",
     "contributors": [
@@ -24377,12 +24364,6 @@
       "Potappo"
     ]
   },
-  "Web/API/Window/ondevicemotion": {
-    "modified": "2020-10-15T22:28:07.002Z",
-    "contributors": [
-      "mfuji09"
-    ]
-  },
   "Web/API/Window/open": {
     "modified": "2020-10-25T23:26:28.860Z",
     "contributors": [
@@ -48327,6 +48308,19 @@
       "Wind1808"
     ]
   },
+  "conflicting/Web/API/MediaStreamTrack/mute_event": {
+    "modified": "2020-10-15T22:00:10.968Z",
+    "contributors": [
+      "YujiSoftware",
+      "e53e04ac"
+    ]
+  },
+  "conflicting/Web/API/MediaStreamTrack/unmute_event": {
+    "modified": "2019-03-18T21:45:15.060Z",
+    "contributors": [
+      "e53e04ac"
+    ]
+  },
   "conflicting/Web/API/Navigator/onLine": {
     "modified": "2019-03-23T23:53:08.504Z",
     "contributors": [
@@ -48429,6 +48423,12 @@
       "YuichiNukiyama"
     ]
   },
+  "conflicting/Web/API/Window/devicemotion_event": {
+    "modified": "2020-10-15T22:28:07.002Z",
+    "contributors": [
+      "mfuji09"
+    ]
+  },
   "conflicting/Web/API/Window/gamepadconnected_event": {
     "modified": "2020-10-15T22:12:53.034Z",
     "contributors": [
diff --git a/files/ja/web/api/mediastreamtrack/onmute/index.html b/files/ja/conflicting/web/api/mediastreamtrack/mute_event/index.html
index 0707c39193..42f6afd740 100644
--- a/files/ja/web/api/mediastreamtrack/onmute/index.html
+++ b/files/ja/conflicting/web/api/mediastreamtrack/mute_event/index.html
@@ -1,7 +1,8 @@
 ---
 title: MediaStreamTrack.onmute
-slug: Web/API/MediaStreamTrack/onmute
+slug: conflicting/Web/API/MediaStreamTrack/mute_event
 translation_of: Web/API/MediaStreamTrack/onmute
+original_slug: Web/API/MediaStreamTrack/onmute
 ---
 <p>{{ APIRef("Media Capture and Streams") }}</p>
 
diff --git a/files/ja/web/api/mediastreamtrack/onunmute/index.html b/files/ja/conflicting/web/api/mediastreamtrack/unmute_event/index.html
index 9b3e5b7d6d..9735d8bf34 100644
--- a/files/ja/web/api/mediastreamtrack/onunmute/index.html
+++ b/files/ja/conflicting/web/api/mediastreamtrack/unmute_event/index.html
@@ -1,7 +1,8 @@
 ---
 title: MediaStreamTrack.onunmute
-slug: Web/API/MediaStreamTrack/onunmute
+slug: conflicting/Web/API/MediaStreamTrack/unmute_event
 translation_of: Web/API/MediaStreamTrack/onunmute
+original_slug: Web/API/MediaStreamTrack/onunmute
 ---
 <p>{{ APIRef("Media Capture and Streams") }}</p>
 
diff --git a/files/ja/web/api/window/ondevicemotion/index.html b/files/ja/conflicting/web/api/window/devicemotion_event/index.html
index aefd927e24..7c0b782d06 100644
--- a/files/ja/web/api/window/ondevicemotion/index.html
+++ b/files/ja/conflicting/web/api/window/devicemotion_event/index.html
@@ -1,6 +1,6 @@
 ---
 title: Window.ondevicemotion
-slug: Web/API/Window/ondevicemotion
+slug: conflicting/Web/API/Window/devicemotion_event
 tags:
   - API
   - Device Orientation
@@ -16,6 +16,7 @@ tags:
   - 向き
   - 端末の向き
 translation_of: Web/API/Window/ondevicemotion
+original_slug: Web/API/Window/ondevicemotion
 ---
 <div>{{APIRef("Device Orientation Events")}}</div>
 
diff --git a/files/ja/learn/css/first_steps/using_your_new_knowledge/index.html b/files/ja/learn/css/first_steps/styling_a_biography_page/index.html
index c1b3a1c889..b03174d271 100644
--- a/files/ja/learn/css/first_steps/using_your_new_knowledge/index.html
+++ b/files/ja/learn/css/first_steps/styling_a_biography_page/index.html
@@ -1,12 +1,13 @@
 ---
 title: 新しい知識を使う
-slug: Learn/CSS/First_steps/Using_your_new_knowledge
+slug: Learn/CSS/First_steps/Styling_a_biography_page
 tags:
   - Beginner
   - CSS
   - Learn
   - Playground
 translation_of: Learn/CSS/First_steps/Using_your_new_knowledge
+original_slug: Learn/CSS/First_steps/Using_your_new_knowledge
 ---
 <p>{{LearnSidebar}}{{PreviousMenu("Learn/CSS/First_steps/How_CSS_works", "Learn/CSS/First_steps")}}</p>
 
diff --git a/files/ja/web/api/mediastreamtrack/onended/index.html b/files/ja/web/api/mediastreamtrack/ended_event/index.html
index b41beb67cb..b5a1bb7a2a 100644
--- a/files/ja/web/api/mediastreamtrack/onended/index.html
+++ b/files/ja/web/api/mediastreamtrack/ended_event/index.html
@@ -1,7 +1,8 @@
 ---
 title: MediaStreamTrack.onended
-slug: Web/API/MediaStreamTrack/onended
+slug: Web/API/MediaStreamTrack/ended_event
 translation_of: Web/API/MediaStreamTrack/onended
+original_slug: Web/API/MediaStreamTrack/onended
 ---
 <p>{{ APIRef("Media Capture and Streams") }}</p>
 
diff --git a/files/ja/web/api/mediastreamtrack/onoverconstrained/index.html b/files/ja/web/api/mediastreamtrack/overconstrained_event/index.html
index d6c1333cac..e141ad3ac9 100644
--- a/files/ja/web/api/mediastreamtrack/onoverconstrained/index.html
+++ b/files/ja/web/api/mediastreamtrack/overconstrained_event/index.html
@@ -1,7 +1,8 @@
 ---
 title: MediaStreamTrack.onoverconstrained
-slug: Web/API/MediaStreamTrack/onoverconstrained
+slug: Web/API/MediaStreamTrack/overconstrained_event
 translation_of: Web/API/MediaStreamTrack/onoverconstrained
+original_slug: Web/API/MediaStreamTrack/onoverconstrained
 ---
 <p>{{ APIRef("Media Capture and Streams") }}</p>
 
diff --git a/files/ko/_redirects.txt b/files/ko/_redirects.txt
index c4b68910cb..b1c41121da 100644
--- a/files/ko/_redirects.txt
+++ b/files/ko/_redirects.txt
@@ -286,6 +286,7 @@
 /ko/docs/Learn/CSS/CSS_layout/위치잡기	/ko/docs/Learn/CSS/CSS_layout/Positioning
 /ko/docs/Learn/CSS/CSS_layout/이전_브라우저_지원	/ko/docs/Learn/CSS/CSS_layout/Supporting_Older_Browsers
 /ko/docs/Learn/CSS/CSS_layout/일반_흐름	/ko/docs/Learn/CSS/CSS_layout/Normal_Flow
+/ko/docs/Learn/CSS/First_steps/Using_your_new_knowledge	/ko/docs/Learn/CSS/First_steps/Styling_a_biography_page
 /ko/docs/Learn/CSS/Introduction_to_CSS	/en-US/docs/Learn/CSS/First_steps
 /ko/docs/Learn/CSS/Introduction_to_CSS/Attribute_selectors	/en-US/docs/Learn/CSS/Building_blocks/Selectors/Attribute_selectors
 /ko/docs/Learn/CSS/Introduction_to_CSS/Cascade_and_inheritance	/en-US/docs/Learn/CSS/Building_blocks/Cascade_and_inheritance
diff --git a/files/ko/_wikihistory.json b/files/ko/_wikihistory.json
index adbd504fa9..651d51c35f 100644
--- a/files/ko/_wikihistory.json
+++ b/files/ko/_wikihistory.json
@@ -1373,7 +1373,7 @@
       "java2020007"
     ]
   },
-  "Learn/CSS/First_steps/Using_your_new_knowledge": {
+  "Learn/CSS/First_steps/Styling_a_biography_page": {
     "modified": "2020-07-16T22:28:04.551Z",
     "contributors": [
       "java2020007"
diff --git a/files/ko/learn/css/first_steps/using_your_new_knowledge/index.html b/files/ko/learn/css/first_steps/styling_a_biography_page/index.html
index 6a1795419c..854d9a7665 100644
--- a/files/ko/learn/css/first_steps/using_your_new_knowledge/index.html
+++ b/files/ko/learn/css/first_steps/styling_a_biography_page/index.html
@@ -1,7 +1,8 @@
 ---
 title: 새로운 지식을 사용하기
-slug: Learn/CSS/First_steps/Using_your_new_knowledge
+slug: Learn/CSS/First_steps/Styling_a_biography_page
 translation_of: Learn/CSS/First_steps/Using_your_new_knowledge
+original_slug: Learn/CSS/First_steps/Using_your_new_knowledge
 ---
 <p>{{LearnSidebar}}{{PreviousMenu("Learn/CSS/First_steps/How_CSS_works", "Learn/CSS/First_steps")}}</p>
 
diff --git a/files/pt-br/_redirects.txt b/files/pt-br/_redirects.txt
index e5c5f6508b..19211a793a 100644
--- a/files/pt-br/_redirects.txt
+++ b/files/pt-br/_redirects.txt
@@ -381,6 +381,7 @@
 /pt-BR/docs/Learn/CSS/First_steps/Como_CSS_e_estruturado	/pt-BR/docs/Learn/CSS/First_steps/How_CSS_is_structured
 /pt-BR/docs/Learn/CSS/First_steps/Iniciando	/pt-BR/docs/Learn/CSS/First_steps/Getting_started
 /pt-BR/docs/Learn/CSS/First_steps/O_que_e_CSS	/pt-BR/docs/Learn/CSS/First_steps/What_is_CSS
+/pt-BR/docs/Learn/CSS/First_steps/Using_your_new_knowledge	/pt-BR/docs/Learn/CSS/First_steps/Styling_a_biography_page
 /pt-BR/docs/Learn/CSS/Howto/CSS_Perguntas_Frequentes	/pt-BR/docs/Learn/CSS/Howto/CSS_FAQ
 /pt-BR/docs/Learn/Common_questions/Como_a_internet_funciona	/pt-BR/docs/Learn/Common_questions/How_does_the_Internet_work
 /pt-BR/docs/Learn/Common_questions/Como_configurar_um_servidor_de_testes_local	/pt-BR/docs/Learn/Common_questions/set_up_a_local_testing_server
diff --git a/files/pt-br/_wikihistory.json b/files/pt-br/_wikihistory.json
index a16a54abbc..034ab18fb7 100644
--- a/files/pt-br/_wikihistory.json
+++ b/files/pt-br/_wikihistory.json
@@ -1372,7 +1372,7 @@
       "cirogomes58"
     ]
   },
-  "Learn/CSS/First_steps/Using_your_new_knowledge": {
+  "Learn/CSS/First_steps/Styling_a_biography_page": {
     "modified": "2020-07-16T22:28:04.939Z",
     "contributors": [
       "LuisFreitas1"
diff --git a/files/pt-br/learn/css/first_steps/using_your_new_knowledge/index.html b/files/pt-br/learn/css/first_steps/styling_a_biography_page/index.html
index 848524cba3..ece978c757 100644
--- a/files/pt-br/learn/css/first_steps/using_your_new_knowledge/index.html
+++ b/files/pt-br/learn/css/first_steps/styling_a_biography_page/index.html
@@ -1,7 +1,8 @@
 ---
 title: Using your new knowledge
-slug: Learn/CSS/First_steps/Using_your_new_knowledge
+slug: Learn/CSS/First_steps/Styling_a_biography_page
 translation_of: Learn/CSS/First_steps/Using_your_new_knowledge
+original_slug: Learn/CSS/First_steps/Using_your_new_knowledge
 ---
 <p>{{LearnSidebar}}{{PreviousMenu("Learn/CSS/First_steps/How_CSS_works", "Learn/CSS/First_steps")}}</p>
 
diff --git a/files/ru/_redirects.txt b/files/ru/_redirects.txt
index 1c06359a39..dbf6990fb3 100644
--- a/files/ru/_redirects.txt
+++ b/files/ru/_redirects.txt
@@ -171,6 +171,7 @@
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 /ru/docs/Learn/CSS/CSS_layout/Нормальный_поток	/ru/docs/Learn/CSS/CSS_layout/Normal_Flow
 /ru/docs/Learn/CSS/CSS_layout/Отзывчивый_дизайн	/ru/docs/Learn/CSS/CSS_layout/Responsive_Design
+/ru/docs/Learn/CSS/First_steps/Using_your_new_knowledge	/ru/docs/Learn/CSS/First_steps/Styling_a_biography_page
 /ru/docs/Learn/CSS/First_steps/Как_структурирован_CSS	/ru/docs/Learn/CSS/First_steps/How_CSS_is_structured
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@@ -386,6 +387,7 @@
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 /ru/docs/Web/API/Window/crypto	/ru/docs/Web/API/crypto_property
 /ru/docs/Web/API/Window/mozAnimationStartTime	/ru/docs/Web/API/Animation/startTime
+/ru/docs/Web/API/Window/ondeviceorientation	/ru/docs/conflicting/Web/API/Window/deviceorientation_event
 /ru/docs/Web/API/Window/ongamepadconnected	/ru/docs/conflicting/Web/API/Window/gamepadconnected_event
 /ru/docs/Web/API/Window/ongamepaddisconnected	/ru/docs/conflicting/Web/API/Window/gamepaddisconnected_event
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diff --git a/files/ru/_wikihistory.json b/files/ru/_wikihistory.json
index 1bae2b40bf..74e40ecc51 100644
--- a/files/ru/_wikihistory.json
+++ b/files/ru/_wikihistory.json
@@ -2226,7 +2226,7 @@
       "Immdevrov"
     ]
   },
-  "Learn/CSS/First_steps/Using_your_new_knowledge": {
+  "Learn/CSS/First_steps/Styling_a_biography_page": {
     "modified": "2020-12-03T17:31:51.841Z",
     "contributors": [
       "RoPy73",
@@ -11292,12 +11292,6 @@
       "ShantyHoz"
     ]
   },
-  "Web/API/Window/ondeviceorientation": {
-    "modified": "2019-03-23T22:29:46.961Z",
-    "contributors": [
-      "timur-gilauri"
-    ]
-  },
   "Web/API/Window/onpaint": {
     "modified": "2019-03-23T22:08:47.903Z",
     "contributors": [
@@ -24229,6 +24223,12 @@
       "akhabibullina"
     ]
   },
+  "conflicting/Web/API/Window/deviceorientation_event": {
+    "modified": "2019-03-23T22:29:46.961Z",
+    "contributors": [
+      "timur-gilauri"
+    ]
+  },
   "conflicting/Web/API/Window/gamepadconnected_event": {
     "modified": "2020-11-17T12:43:15.635Z",
     "contributors": [
diff --git a/files/ru/web/api/window/ondeviceorientation/index.html b/files/ru/conflicting/web/api/window/deviceorientation_event/index.html
index 97709fa1ad..7ce1ddf2cf 100644
--- a/files/ru/web/api/window/ondeviceorientation/index.html
+++ b/files/ru/conflicting/web/api/window/deviceorientation_event/index.html
@@ -1,6 +1,6 @@
 ---
 title: Window.ondeviceorientation
-slug: Web/API/Window/ondeviceorientation
+slug: conflicting/Web/API/Window/deviceorientation_event
 tags:
   - API
   - Мобильные устройства
@@ -8,6 +8,7 @@ tags:
   - Ориентация устройства
   - Свойства
 translation_of: Web/API/Window/ondeviceorientation
+original_slug: Web/API/Window/ondeviceorientation
 ---
 <p>{{ ApiRef() }}</p>
 
diff --git a/files/ru/learn/css/first_steps/using_your_new_knowledge/index.html b/files/ru/learn/css/first_steps/styling_a_biography_page/index.html
index a330376ca0..028424217d 100644
--- a/files/ru/learn/css/first_steps/using_your_new_knowledge/index.html
+++ b/files/ru/learn/css/first_steps/styling_a_biography_page/index.html
@@ -1,6 +1,6 @@
 ---
 title: Использование ваших новых знаний
-slug: Learn/CSS/First_steps/Using_your_new_knowledge
+slug: Learn/CSS/First_steps/Styling_a_biography_page
 tags:
   - Beginner
   - CSS
@@ -9,6 +9,7 @@ tags:
   - Начинающий
   - Обучение
 translation_of: Learn/CSS/First_steps/Using_your_new_knowledge
+original_slug: Learn/CSS/First_steps/Using_your_new_knowledge
 ---
 <p>{{LearnSidebar}}{{PreviousMenu("Learn/CSS/First_steps/How_CSS_works", "Learn/CSS/First_steps")}}</p>
 
diff --git a/files/zh-cn/_redirects.txt b/files/zh-cn/_redirects.txt
index aa184cbb38..5a4c050b16 100644
--- a/files/zh-cn/_redirects.txt
+++ b/files/zh-cn/_redirects.txt
@@ -1038,6 +1038,7 @@
 /zh-CN/docs/Learn/CSS/CSS_layout/定位	/zh-CN/docs/Learn/CSS/CSS_layout/Positioning
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 /zh-CN/docs/Learn/CSS/First_steps/CSS如何运行	/zh-CN/docs/Learn/CSS/First_steps/How_CSS_works
+/zh-CN/docs/Learn/CSS/First_steps/Using_your_new_knowledge	/zh-CN/docs/Learn/CSS/First_steps/Styling_a_biography_page
 /zh-CN/docs/Learn/CSS/First_steps/开始	/zh-CN/docs/Learn/CSS/First_steps/Getting_started
 /zh-CN/docs/Learn/CSS/Introduction_to_CSS	/en-US/docs/Learn/CSS/First_steps
 /zh-CN/docs/Learn/CSS/Introduction_to_CSS/Attribute_selectors	/en-US/docs/Learn/CSS/Building_blocks/Selectors/Attribute_selectors
@@ -1617,6 +1618,9 @@
 /zh-CN/docs/Web/API/Window/onappinstalled	/zh-CN/docs/Web/API/Window/appinstalled_event
 /zh-CN/docs/Web/API/Window/onbeforeinstallprompt	/zh-CN/docs/Web/API/Window/beforeinstallprompt_event
 /zh-CN/docs/Web/API/Window/onbeforeunload	/zh-CN/docs/Web/API/WindowEventHandlers/onbeforeunload
+/zh-CN/docs/Web/API/Window/ondevicemotion	/zh-CN/docs/Web/API/Window/devicemotion_event
+/zh-CN/docs/Web/API/Window/ondeviceorientation	/zh-CN/docs/conflicting/Web/API/Window/deviceorientation_event
+/zh-CN/docs/Web/API/Window/ondeviceorientationabsolute	/zh-CN/docs/Web/API/Window/deviceorientationabsolute_event
 /zh-CN/docs/Web/API/Window/ongamepadconnected	/zh-CN/docs/conflicting/Web/API/Window/gamepadconnected_event
 /zh-CN/docs/Web/API/Window/ongamepaddisconnected	/zh-CN/docs/Web/API/Window/gamepaddisconnected_event
 /zh-CN/docs/Web/API/Window/onhashchange	/zh-CN/docs/Web/API/WindowEventHandlers/onhashchange
diff --git a/files/zh-cn/_wikihistory.json b/files/zh-cn/_wikihistory.json
index a748dafa8d..54f83cc3f3 100644
--- a/files/zh-cn/_wikihistory.json
+++ b/files/zh-cn/_wikihistory.json
@@ -3051,7 +3051,7 @@
       "xcxAscar"
     ]
   },
-  "Learn/CSS/First_steps/Using_your_new_knowledge": {
+  "Learn/CSS/First_steps/Styling_a_biography_page": {
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     "contributors": [
       "dlnb526",
@@ -22711,6 +22711,13 @@
       "Jiang-Xuan"
     ]
   },
+  "Web/API/Window/devicemotion_event": {
+    "modified": "2019-03-18T21:39:10.384Z",
+    "contributors": [
+      "pinpinye",
+      "Mmzer"
+    ]
+  },
   "Web/API/Window/deviceorientation_event": {
     "modified": "2019-04-11T18:37:50.677Z",
     "contributors": [
@@ -22719,6 +22726,12 @@
       "laobubu"
     ]
   },
+  "Web/API/Window/deviceorientationabsolute_event": {
+    "modified": "2020-10-15T22:09:12.548Z",
+    "contributors": [
+      "webber007"
+    ]
+  },
   "Web/API/Window/dialogArguments": {
     "modified": "2019-03-23T22:13:58.259Z",
     "contributors": [
@@ -23049,25 +23062,6 @@
       "charlie"
     ]
   },
-  "Web/API/Window/ondevicemotion": {
-    "modified": "2019-03-18T21:39:10.384Z",
-    "contributors": [
-      "pinpinye",
-      "Mmzer"
-    ]
-  },
-  "Web/API/Window/ondeviceorientation": {
-    "modified": "2019-03-18T21:38:06.143Z",
-    "contributors": [
-      "Aaron_Zhung"
-    ]
-  },
-  "Web/API/Window/ondeviceorientationabsolute": {
-    "modified": "2020-10-15T22:09:12.548Z",
-    "contributors": [
-      "webber007"
-    ]
-  },
   "Web/API/Window/ondragdrop": {
     "modified": "2020-06-28T00:52:25.247Z",
     "contributors": [
@@ -47247,6 +47241,12 @@
       "ziyunfei"
     ]
   },
+  "conflicting/Web/API/Window/deviceorientation_event": {
+    "modified": "2019-03-18T21:38:06.143Z",
+    "contributors": [
+      "Aaron_Zhung"
+    ]
+  },
   "conflicting/Web/API/Window/gamepadconnected_event": {
     "modified": "2020-10-15T22:22:28.465Z",
     "contributors": [
diff --git a/files/zh-cn/web/api/window/ondeviceorientation/index.html b/files/zh-cn/conflicting/web/api/window/deviceorientation_event/index.html
index 672cc0aaa3..7c74434f69 100644
--- a/files/zh-cn/web/api/window/ondeviceorientation/index.html
+++ b/files/zh-cn/conflicting/web/api/window/deviceorientation_event/index.html
@@ -1,7 +1,8 @@
 ---
 title: Window.ondeviceorientation
-slug: Web/API/Window/ondeviceorientation
+slug: conflicting/Web/API/Window/deviceorientation_event
 translation_of: Web/API/Window/ondeviceorientation
+original_slug: Web/API/Window/ondeviceorientation
 ---
 <p>{{ ApiRef() }}</p>
 
diff --git a/files/zh-cn/learn/css/first_steps/using_your_new_knowledge/index.html b/files/zh-cn/learn/css/first_steps/styling_a_biography_page/index.html
index 49b2fb8e88..971a78bc2f 100644
--- a/files/zh-cn/learn/css/first_steps/using_your_new_knowledge/index.html
+++ b/files/zh-cn/learn/css/first_steps/styling_a_biography_page/index.html
@@ -1,10 +1,11 @@
 ---
 title: 运用你的新知识
-slug: Learn/CSS/First_steps/Using_your_new_knowledge
+slug: Learn/CSS/First_steps/Styling_a_biography_page
 tags:
   - CSS
   - 新手
 translation_of: Learn/CSS/First_steps/Using_your_new_knowledge
+original_slug: Learn/CSS/First_steps/Using_your_new_knowledge
 ---
 <p>{{LearnSidebar}}{{PreviousMenu("Learn/CSS/First_steps/How_CSS_works", "Learn/CSS/First_steps")}}</p>
 
diff --git a/files/zh-cn/web/api/window/ondevicemotion/index.html b/files/zh-cn/web/api/window/devicemotion_event/index.html
index 41cda848df..121c863f85 100644
--- a/files/zh-cn/web/api/window/ondevicemotion/index.html
+++ b/files/zh-cn/web/api/window/devicemotion_event/index.html
@@ -1,6 +1,6 @@
 ---
 title: Window.ondevicemotion
-slug: Web/API/Window/ondevicemotion
+slug: Web/API/Window/devicemotion_event
 tags:
   - API
   - Device Orientation
@@ -9,6 +9,7 @@ tags:
   - Motion
   - 移动端设备
 translation_of: Web/API/Window/ondevicemotion
+original_slug: Web/API/Window/ondevicemotion
 ---
 <p>{{ ApiRef() }}</p>
 
diff --git a/files/zh-cn/web/api/window/ondeviceorientationabsolute/index.html b/files/zh-cn/web/api/window/deviceorientationabsolute_event/index.html
index b595d9852c..6f1e4f5fc7 100644
--- a/files/zh-cn/web/api/window/ondeviceorientationabsolute/index.html
+++ b/files/zh-cn/web/api/window/deviceorientationabsolute_event/index.html
@@ -1,7 +1,8 @@
 ---
 title: Window.ondeviceorientationabsolute
-slug: Web/API/Window/ondeviceorientationabsolute
+slug: Web/API/Window/deviceorientationabsolute_event
 translation_of: Web/API/Window/ondeviceorientationabsolute
+original_slug: Web/API/Window/ondeviceorientationabsolute
 ---
 <p>{{ ApiRef() }}{{Non-standard_header}}</p>