diff --git a/resources/css/components/menu.css b/resources/css/components/menu.css
index 172f6672..65e1bd56 100644
--- a/resources/css/components/menu.css
+++ b/resources/css/components/menu.css
@@ -2,7 +2,7 @@
  * The menus: `<x-menu>` and what a form's own dropdowns wear too, so a menu and a form read as
  * one family.
  *
- * Two lists wear the dropdown:
+ * Three lists wear it:
  *
  *   - `<x-menu>`'s own popover (`[data-md-menu-popover]`) and, inside it, a submenu
  *     (`[data-md-submenu]`, menu-item.css).
@@ -19,7 +19,7 @@
  * focus.
  *
  * `[data-md-menu]` is `<x-menu>`'s root, holding the trigger and the popover; the popover itself
- * is `[data-md-menu-popover]`, capped at 18rem so a long menu scrolls instead of running off the
+ * is `[data-md-menu-popover]`, capped at 288px so a long menu scrolls instead of running off the
  * top layer's edge (ACT-04), and transitions in by growing from its trigger's corner while it
  * fades, on the spatial and effects springs respectively (ACT-26). `data-md-vibrant` swaps its
  * container for tertiary-container; a nested submenu inherits the colour through
diff --git a/resources/views/components/menu.blade.php b/resources/views/components/menu.blade.php
index b0a7f573..f736e478 100644
--- a/resources/views/components/menu.blade.php
+++ b/resources/views/components/menu.blade.php
@@ -33,7 +33,7 @@
      same key.
 
      A menu too long for the window scrolls, as M3 asks, rather than running off the edge of the
-     top layer where nothing can reach it (ACT-04): 18rem at most, and less on a short window. The
+     top layer where nothing can reach it (ACT-04): 288px at most, and less on a short window. The
      arrow keys, Home, End and typeahead bring the item they move to into view, and a disabled
      item is among them: M3 keeps one reachable so a person can find out that it exists.