diff --git a/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/center-an-element-horizontally-using-the-margin-property.md b/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/center-an-element-horizontally-using-the-margin-property.md
index 0fdf546832..c4ec228962 100644
--- a/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/center-an-element-horizontally-using-the-margin-property.md
+++ b/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/center-an-element-horizontally-using-the-margin-property.md
@@ -22,7 +22,7 @@ Center the `div` on the page by adding a `margin` property with a value of `auto
 The `div` should have a `margin` set to `auto`.
 
 ```js
-assert(code.match(/margin:\s*?auto;/g));
+assert(new __helpers.CSSHelp(document).getStyle('div')?.margin === 'auto');
 ```
 
 # --seed--