diff --git a/kartano/presentations/01presentation.md b/kartano/presentations/01presentation.md
index 62b2687..3c50533 100644
--- a/kartano/presentations/01presentation.md
+++ b/kartano/presentations/01presentation.md
@@ -5,17 +5,8 @@
 
 ## Presentation
 
-[<img src="https://code.33co.de/ehofmann/ERP-samk/raw/commit/6da621262b56c0e57367a38850bf8ec62b71ce98/videos/reduce-presentation.mp4">](https://code.33co.de/ehofmann/ERP-samk/raw/commit/6da621262b56c0e57367a38850bf8ec62b71ce98/videos/reduce-presentation.mp4 "Presentation")
+<img src="https://code.33co.de/ehofmann/ERP-samk/raw/commit/6da621262b56c0e57367a38850bf8ec62b71ce98/videos/reduce-presentation.mp4">
 
-<video controls width="900">
-
-    <source src=https://code.33co.de/ehofmann/ERP-samk/raw/commit/6da621262b56c0e57367a38850bf8ec62b71ce98/videos/reduce-presentation.mp4"
-            type="video/mp4">
-
-    Download the
-    <a href=https://code.33co.de/ehofmann/ERP-samk/raw/commit/6da621262b56c0e57367a38850bf8ec62b71ce98/videos/reduce-presentation.mp4">MP4</a>
-    video.
-</video>
 
 ## Keynotes
 <img src="animation.gif" align="right" width="400px"/>