diff --git a/pyscriptjs/examples/utils.py b/pyscriptjs/examples/utils.py
index 2a48a4fe..83feddb9 100644
--- a/pyscriptjs/examples/utils.py
+++ b/pyscriptjs/examples/utils.py
@@ -7,7 +7,7 @@ def now(fmt = "%m/%d/%Y, %H:%M:%S"):
     return format_date(dt.now(), fmt)
 
 def remove_class(element, className):
-    element.element.classList.remove("line-through")
+    element.element.classList.remove(className)
 
 def add_class(element, className):
-    element.element.classList.add("line-through")
\ No newline at end of file
+    element.element.classList.add(className)
\ No newline at end of file