diff --git a/session_1/session_1.Rmd b/session_1/session_1.Rmd
index a8aac78ee9cd50df137fc898ecc5301339be6bd8..b4f54e53d7bc93175bd2a154b152ccc9ade19dbb 100644
--- a/session_1/session_1.Rmd
+++ b/session_1/session_1.Rmd
@@ -4,11 +4,11 @@ author: "Laurent Modolo [laurent.modolo@ens-lyon.fr](mailto:laurent.modolo@ens-l
 date: "2021"
 output:
   rmdformats::downcute:
-    self_contain: false
+    self_contain: true
     use_bookdown: true
     default_style: "dark"
     lightbox: true
-    css: "../src/style.css"
+    css: "http://perso.ens-lyon.fr/laurent.modolo/R/src/style.css"
 ---
 
 ```{r setup, include=FALSE}
diff --git a/session_2/session_2.Rmd b/session_2/session_2.Rmd
index 3320236fcc7295bf194347ade99b3d214ee5b2df..2500ed270476a662d82473c6bff97f6ccb453da2 100644
--- a/session_2/session_2.Rmd
+++ b/session_2/session_2.Rmd
@@ -4,11 +4,11 @@ author: "Laurent Modolo [laurent.modolo@ens-lyon.fr](mailto:laurent.modolo@ens-l
 date: "2021"
 output:
   rmdformats::downcute:
-    self_contain: false
+    self_contain: true
     use_bookdown: true
     default_style: "dark"
     lightbox: true
-    css: "../src/style.css"
+    css: "http://perso.ens-lyon.fr/laurent.modolo/R/src/style.css"
 ---
 
 ```{r setup, include=FALSE}
diff --git a/session_3/session_3.Rmd b/session_3/session_3.Rmd
index 8e2b7e4290d9f440ea45cdd5311f2f733609c6f8..70be6554200369732fb5fa43c2d9ec4196ea53ef 100644
--- a/session_3/session_3.Rmd
+++ b/session_3/session_3.Rmd
@@ -4,11 +4,11 @@ author: "Laurent Modolo [laurent.modolo@ens-lyon.fr](mailto:laurent.modolo@ens-l
 date: "2021"
 output:
   rmdformats::downcute:
-    self_contain: false
+    self_contain: true
     use_bookdown: true
     default_style: "dark"
     lightbox: true
-    css: "../src/style.css"
+    css: "http://perso.ens-lyon.fr/laurent.modolo/R/src/style.css"
 ---
 
 ```{r setup, include=FALSE}