diff --git a/core/themes/claro/css/components/toolbar.module.css b/core/themes/claro/css/components/toolbar.module.css
index 22ebf073c12..99daf51388a 100644
--- a/core/themes/claro/css/components/toolbar.module.css
+++ b/core/themes/claro/css/components/toolbar.module.css
@@ -97,11 +97,7 @@
  * style to avoid extra reflow & flicker. */
 @media (min-width: 61em) {
   .toolbar-loading.toolbar-horizontal .toolbar .toolbar-bar .toolbar-tab:last-child .toolbar-tray {
-    position: relative;
-    z-index: -999;
-    display: block;
-    visibility: hidden;
-    width: 1px;
+    display: none;
   }
 }
 /* Position the admin toolbar fixed when the configured standard breakpoint is
diff --git a/core/themes/claro/css/components/toolbar.module.pcss.css b/core/themes/claro/css/components/toolbar.module.pcss.css
index 5436e981572..1a81df00717 100644
--- a/core/themes/claro/css/components/toolbar.module.pcss.css
+++ b/core/themes/claro/css/components/toolbar.module.pcss.css
@@ -104,11 +104,7 @@
  * style to avoid extra reflow & flicker. */
 @media (min-width: 61em) {
   .toolbar-loading.toolbar-horizontal .toolbar .toolbar-bar .toolbar-tab:last-child .toolbar-tray {
-    position: relative;
-    z-index: -999;
-    display: block;
-    visibility: hidden;
-    width: 1px;
+    display: none;
   }
 }
 
diff --git a/core/themes/stable9/css/toolbar/toolbar.module.css b/core/themes/stable9/css/toolbar/toolbar.module.css
index 0cfb78511f9..6eabe49bcd2 100644
--- a/core/themes/stable9/css/toolbar/toolbar.module.css
+++ b/core/themes/stable9/css/toolbar/toolbar.module.css
@@ -83,11 +83,7 @@
  * style to avoid extra reflow & flicker. */
 @media (min-width: 61em) {
   .toolbar-loading.toolbar-horizontal .toolbar .toolbar-bar .toolbar-tab:last-child .toolbar-tray {
-    position: relative;
-    z-index: -999;
-    display: block;
-    visibility: hidden;
-    width: 1px;
+    display: none;
   }
   .toolbar-loading.toolbar-horizontal .toolbar .toolbar-bar .toolbar-tab:last-child .toolbar-tray .toolbar-lining {
     width: 999em;