diff --git a/hello.css b/hello.css
index c3d4f4fb05fad3f779717d76db26beee8fbc6aaf..064772d99112b8622ea6f8c76cafad5ef3075a92 100644
--- a/hello.css
+++ b/hello.css
@@ -11,9 +11,6 @@ code {
 
 .reveal {
     color: white;
-    background-image: url(./sflive_paris2018_big_transp.png);
-    background-repeat: no-repeat;
-    background-position: top right;
 }
 
 @font-face {
diff --git a/sflive_paris2018_big_transp.png b/sflive_paris2018_big_transp.png
deleted file mode 100644
index 272d410697dc2834136509760d216eb382a6d28a..0000000000000000000000000000000000000000
Binary files a/sflive_paris2018_big_transp.png and /dev/null differ