diff --git a/core/modules/toolbar/css/toolbar.module.css b/core/modules/toolbar/css/toolbar.module.css
index 617967e..385f284 100644
--- a/core/modules/toolbar/css/toolbar.module.css
+++ b/core/modules/toolbar/css/toolbar.module.css
@@ -78,8 +78,7 @@
   position: absolute;
   right: 0;
 }
-/* Flickering fix
- * .toolbar-loading is required by toolbar JavaScript to pre-render markup
+/* .toolbar-loading is required by toolbar JavaScript to pre-render markup
  * style to avoid extra reflow & flicker. */
 @media (min-width:61em) {
   .toolbar-loading.toolbar-horizontal .toolbar .toolbar-bar .toolbar-tab:last-child .toolbar-tray {
@@ -115,12 +114,6 @@ body.toolbar-tray-open.toolbar-fixed.toolbar-vertical .toolbar-oriented {
   width: 15rem;
 }
 
-/* Flickering fix */
-body.toolbar-tray-open.toolbar-fixed.toolbar-vertical #toolbar-administration {
-  margin-left: -240px;
-  margin-left: -15rem;
-}
-
 /* Present the admin toolbar tabs horizontally as a default on user agents that
  * do not understand media queries or on user agents where JavaScript is
  * disabled. */
diff --git a/core/themes/stable/css/toolbar/toolbar.module.css b/core/themes/stable/css/toolbar/toolbar.module.css
index cd8e2b9..82abf07 100644
--- a/core/themes/stable/css/toolbar/toolbar.module.css
+++ b/core/themes/stable/css/toolbar/toolbar.module.css
@@ -78,8 +78,7 @@
   position: absolute;
   right: 0;
 }
-/* Flickering fix
- * .toolbar-loading is required by Toolbar JavaScript to pre-render markup
+/* .toolbar-loading is required by Toolbar JavaScript to pre-render markup
  * style to avoid extra reflow & flicker. */
 @media (min-width:61em) {
   .toolbar-loading.toolbar-horizontal .toolbar .toolbar-bar .toolbar-tab:last-child .toolbar-tray {
@@ -115,12 +114,6 @@ body.toolbar-tray-open.toolbar-fixed.toolbar-vertical .toolbar-oriented {
   width: 15rem;
 }
 
-/* Flickering fix */
-body.toolbar-tray-open.toolbar-fixed.toolbar-vertical #toolbar-administration {
-  margin-left: -240px;
-  margin-left: -15rem;
-}
-
 /* Present the admin toolbar tabs horizontally as a default on user agents that
  * do not understand media queries or on user agents where JavaScript is
  * disabled. */