diff --git a/html/semantics/menu/tentative/menu-elements-default-style-ref.html b/html/semantics/menu/tentative/menu-elements-default-style-ref.html
index eb915a41e499da..ae7ef34c0062e0 100644
--- a/html/semantics/menu/tentative/menu-elements-default-style-ref.html
+++ b/html/semantics/menu/tentative/menu-elements-default-style-ref.html
@@ -17,5 +17,6 @@
 <div class="menulist">
   <div class="menuitem">Menulist item A</div>
   <div class="menuitem">Menulist item B</div>
+  <hr>
   <div class="menuitem">Menulist item C</div>
 </div>
diff --git a/html/semantics/menu/tentative/menu-elements-default-style.html b/html/semantics/menu/tentative/menu-elements-default-style.html
index b34a0956a19ff2..81f59137bc7cdc 100644
--- a/html/semantics/menu/tentative/menu-elements-default-style.html
+++ b/html/semantics/menu/tentative/menu-elements-default-style.html
@@ -19,6 +19,7 @@
 <menulist>
   <menuitem>Menulist item A</menuitem>
   <menuitem>Menulist item B</menuitem>
+  <hr>
   <menuitem>Menulist item C</menuitem>
 </menulist>
 
diff --git a/html/semantics/menu/tentative/resources/menu-elements-styles.css b/html/semantics/menu/tentative/resources/menu-elements-styles.css
index 541a6abea94773..a8222a76ea0608 100644
--- a/html/semantics/menu/tentative/resources/menu-elements-styles.css
+++ b/html/semantics/menu/tentative/resources/menu-elements-styles.css
@@ -35,6 +35,13 @@
   margin: 0;
 }
 
+.menulist > hr {
+  color: inherit;
+  margin-inline: 0;
+  border: none;
+  border-block-start: 1px solid currentColor;
+}
+
 /* Menulists whose implicit anchor is a menuitem in a menubar. */
 .menulist-with-menubar-anchor {
   position: absolute;