diff --git a/README.md b/README.md
index 7a98235..b693649 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@
 
 **+ Programmation Python** et **Markdown** tout au long de l'année.
 
-![internet-simpsons](assets/internet-simpsons.gif)
+<video src='assets/internet-simpsons.mp4' poster='assets/internet-simpsons.jpg' width='478' height='356' autoplay loop muted playsinline aria-label='Homer Simpson lit « Internet for dummies » : « Ooh, they have the Internet on computers now »'></video>
 
 ## Outils utilisés
 
diff --git a/assets/internet-simpsons.gif b/assets/internet-simpsons.gif
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diff --git a/assets/internet-simpsons.jpg b/assets/internet-simpsons.jpg
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diff --git a/assets/internet-simpsons.mp4 b/assets/internet-simpsons.mp4
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diff --git a/sequences/internet/dns/.ipynb_checkpoints/README-checkpoint.ipynb b/sequences/internet/dns/.ipynb_checkpoints/README-checkpoint.ipynb
index 4f0caee..74fb945 100644
--- a/sequences/internet/dns/.ipynb_checkpoints/README-checkpoint.ipynb
+++ b/sequences/internet/dns/.ipynb_checkpoints/README-checkpoint.ipynb
@@ -78,7 +78,7 @@
    "source": [
     "C'est pour cela que le __protocole__ *Domain Name System* a été crée.\n",
     "\n",
-    "![dns.gif](assets/dns.gif)"
+    "<video src='assets/dns.mp4' poster='assets/dns.jpg' width='280' height='158' autoplay loop muted playsinline aria-label='Animation : le serveur DNS renvoie l’adresse IP qui correspond au nom de domaine'></video>"
    ]
   },
   {
diff --git a/sequences/internet/dns/README.ipynb b/sequences/internet/dns/README.ipynb
index 4f0caee..74fb945 100644
--- a/sequences/internet/dns/README.ipynb
+++ b/sequences/internet/dns/README.ipynb
@@ -78,7 +78,7 @@
    "source": [
     "C'est pour cela que le __protocole__ *Domain Name System* a été crée.\n",
     "\n",
-    "![dns.gif](assets/dns.gif)"
+    "<video src='assets/dns.mp4' poster='assets/dns.jpg' width='280' height='158' autoplay loop muted playsinline aria-label='Animation : le serveur DNS renvoie l’adresse IP qui correspond au nom de domaine'></video>"
    ]
   },
   {
diff --git a/sequences/internet/dns/README.md b/sequences/internet/dns/README.md
index a6d18b6..45a715a 100644
--- a/sequences/internet/dns/README.md
+++ b/sequences/internet/dns/README.md
@@ -24,7 +24,7 @@ Pour nous autres, êtres humains, il est complexe de retenir toutes les adresses
 
 C'est pour cela que le __protocole__ *Domain Name System* a été créé.
 
-![dns.gif](assets/dns.gif)
+<video src='assets/dns.mp4' poster='assets/dns.jpg' width='280' height='158' autoplay loop muted playsinline aria-label='Animation : le serveur DNS renvoie l’adresse IP qui correspond au nom de domaine'></video>
 
 
 
diff --git a/sequences/internet/dns/assets/dns.gif b/sequences/internet/dns/assets/dns.gif
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index 0000000..3b7d05c
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diff --git a/sequences/internet/dns/assets/dns.mp4 b/sequences/internet/dns/assets/dns.mp4
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index 0000000..56c3cea
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