diff --git a/column-options/class.html b/column-options/class.html
index 03ed1672..a2fa7cc0 100644
--- a/column-options/class.html
+++ b/column-options/class.html
@@ -8,7 +8,7 @@
 </script>
 
 <style>
-.success {
+td.success {
   background: green;
   color: white;
 }