diff --git a/hello.css b/hello.css
index 31567f06867c35f1101c881ccec9be9712074afe..d221643df06a134fc19ece1f7c9cb9e25e703280 100644
--- a/hello.css
+++ b/hello.css
@@ -11,6 +11,9 @@ 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
new file mode 100644
index 0000000000000000000000000000000000000000..272d410697dc2834136509760d216eb382a6d28a
Binary files /dev/null and b/sflive_paris2018_big_transp.png differ