diff --git a/patterns/vertical-header.php b/patterns/vertical-header.php
index 42e620d8..a9092392 100644
--- a/patterns/vertical-header.php
+++ b/patterns/vertical-header.php
@@ -5,6 +5,7 @@
  * Categories: header
  * Block Types: core/template-part/vertical-header
  * Description: Vertical Header with site title and navigation
+ * Viewport width: 300
  *
  * @package WordPress
  * @subpackage Twenty_Twenty_Five