diff --git a/core/themes/claro/css/theme/ckeditor-editor.css b/core/themes/claro/css/theme/ckeditor-editor.css
index b3e1c6cf86238085f11885fe81c18ed2bc9d47bc..b41568aae2f826a2ba54026a174d00edd9e11855 100644
--- a/core/themes/claro/css/theme/ckeditor-editor.css
+++ b/core/themes/claro/css/theme/ckeditor-editor.css
@@ -54,13 +54,6 @@
    */
 }
 
-.cke .cke_top,
-.cke .cke_bottom,
-.cke .cke_contents,
-.cke.cke_chrome {
-  transition: border-color 0.2s ease-in-out 0s;
-}
-
 .cke.cke_chrome {
   border-radius: 0.125em; /* (2 / 16) */
 }
diff --git a/core/themes/claro/css/theme/ckeditor-editor.pcss.css b/core/themes/claro/css/theme/ckeditor-editor.pcss.css
index e23b80ee5ef0629e4598be927ac920b76e4adc0a..addac3c91a28e4c2e9f5d69110f70aa8fddb9fe8 100644
--- a/core/themes/claro/css/theme/ckeditor-editor.pcss.css
+++ b/core/themes/claro/css/theme/ckeditor-editor.pcss.css
@@ -5,13 +5,6 @@
 
 @import "../base/variables.pcss.css";
 
-.cke .cke_top,
-.cke .cke_bottom,
-.cke .cke_contents,
-.cke.cke_chrome {
-  transition: border-color var(--speed-transition) ease-in-out 0s;
-}
-
 .cke.cke_chrome {
   border-radius: 0.125em; /* (2 / 16) */
 }