diff --git a/HowtoReveal.js.md b/HowtoReveal.js.md
index 39aeda87..ca8dc16a 100644
--- a/HowtoReveal.js.md
+++ b/HowtoReveal.js.md
@@ -1,7 +1,50 @@
# Howto reveal.js
+Pour faire des slides verticaux, il suffit d'englober plusieurs sections dans une même section :
+
+~~~{.html}
+
+ Slides can be nested inside of each other.
+
+ Nested slides are useful for adding additional detail underneath a high level horizontal slide.
+
+ Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
+ Lorem ipsum dolor sit amet... ...consectetur adipiscing elit... ...sed do eiusmod tempor incididunt ut...Vertical Slides
+ Basement Level 1
+ A slide with a image
+ A slide with a image
+