diff --git a/demos/tooltip/video-player.html b/demos/tooltip/video-player.html
index 0c251ea83..bf11692c5 100644
--- a/demos/tooltip/video-player.html
+++ b/demos/tooltip/video-player.html
@@ -43,6 +43,12 @@
.player { width: 500px; height: 300px; border: 2px groove gray; background: rgb(200, 200, 200); text-align: center; line-height: 300px; }
/* TODO load from jquery.ui.popup.css */
.ui-popup { position: absolute; z-index: 5000; }
+
+ .ui-tooltip {
+ border: 1px solid white;
+ background: rgba(20, 20, 20, 1);
+ color: white;
+ }