diff --git a/apps/pattern-lab/src/index.js b/apps/pattern-lab/src/index.js
index <HASH>..<HASH> 100644
--- a/apps/pattern-lab/src/index.js
+++ b/apps/pattern-lab/src/index.js
@@ -1,10 +1,10 @@
 import 'core-js/modules/es6.string.starts-with';
 import 'iframe-resizer/js/iframeResizer.contentWindow.min.js';
 
-// automatically remove the min-height default set to the body element when viewing PL pages from inside an iframe on the docs site.
+// automatically remove the min-height default set to the body element when viewing PL pages from inside an iframe on the docs site, but via a utility class
 window.iFrameResizer = {
   readyCallback() {
-    document.body.setAttribute('style', 'min-height: 0;');
+    document.body.classList.add('u-bolt-min-height-none');
   },
 };
refactor: update previous iframe resize logic to handle via a utility class vs inline style