diff --git a/examples/timeline/12_custom_styling.html b/examples/timeline/12_custom_styling.html
index ed0fdf35..8e87b5ce 100644
--- a/examples/timeline/12_custom_styling.html
+++ b/examples/timeline/12_custom_styling.html
@@ -7,7 +7,7 @@
   <link href="../../dist/vis.css" rel="stylesheet" type="text/css" />
 
   <style type="text/css">
-    .vis.timeline.rootpanel {
+    .vis.timeline.root {
       border: 2px solid purple;
       font-family:  purisa, 'comic sans', cursive;
       font-size: 12pt;