diff --git a/src/Interface/Model/Gtk/Pango/Markup.php b/src/Interface/Model/Gtk/Pango/Markup.php
index 7bfbf938..32068bd0 100644
--- a/src/Interface/Model/Gtk/Pango/Markup.php
+++ b/src/Interface/Model/Gtk/Pango/Markup.php
@@ -23,7 +23,7 @@ interface Markup
     public const TAG_TEXT = '<span>%s</span>';
 
     public const WRAP_BREAK = PHP_EOL;
-    public const WRAP_WIDTH = 320;
+    public const WRAP_WIDTH = 320; // px
 
     public static function code(
         string $value