diff --git a/source/_static/custom.css b/source/_static/custom.css
index 5d9a284..fb9f990 100644
--- a/source/_static/custom.css
+++ b/source/_static/custom.css
@@ -29,3 +29,8 @@
   font-family: Roboto Slab,ff-tisa-web-pro,Georgia,Arial,sans-serif;
   break-before: always;
 }
+
+/* hide title numbers after h2 */
+h3 span.section-number, h4 span.section-number, h5 span.section-number, h6 span.section-number {
+	display: none;
+}
\ No newline at end of file
diff --git a/source/index.md b/source/index.md
index 54841f1..378f10d 100644
--- a/source/index.md
+++ b/source/index.md
@@ -44,6 +44,7 @@ Copyright Vélo Solaire Pour Tous, Mai 2023, sous [licence CERN-OHL-S version 2]
 	
 ```{toctree}
 :maxdepth: 2
+:numbered:
 010_documentation
 020_moyens_necessaires
 030_plan_general