diff --git a/README.md b/README.md
index 1e1102f..8d99d9b 100644
--- a/README.md
+++ b/README.md
@@ -21,4 +21,6 @@ That's why I'd advise you to use absolute paths like in the example.
 Please make sure to check your server configuration and update it to use the correct content-type if needed.
 You can do this in a .htaccess file:
 
-`AddType text/x-component .htc`
\ No newline at end of file
+`AddType text/x-component .htc`
+
+It is advised to apply the polyfill selectively, since applying it to every single element can cause resizing or shrinking of elements.  See https://github.com/Schepp/box-sizing-polyfill/issues/12