reverted:
--- b/core/modules/system/css/components/accessibility.module.css
+++ /dev/null
@@ -1,7 +0,0 @@
-/**
- * Accessibility styling.
- */
-.no-animate * {
-  -webkit-transition: none !important;
-  transition: none !important;
-}
reverted:
--- b/core/modules/system/system.libraries.yml
+++ a/core/modules/system/system.libraries.yml
@@ -25,7 +25,6 @@
       css/components/tabledrag.module.css: { weight: -10 }
       css/components/tablesort.module.css: { weight: -10 }
       css/components/tree-child.module.css: { weight: -10 }
-      css/components/accessibility.module.css: { weight: -10 }
 
 admin:
   version: VERSION
only in patch2:
unchanged:
--- a/core/modules/system/css/system.admin.css
+++ b/core/modules/system/css/system.admin.css
@@ -394,3 +394,11 @@ small .admin-link:after {
 .cron-description__run-cron {
   display: block;
 }
+
+/**
+ * Remove animations for accessibility purposes.
+ */
+.no-animate * {
+  -webkit-transition: none !important;
+  transition: none !important;
+}