diff --git a/core/modules/ckeditor5/css/editor.css b/core/modules/ckeditor5/css/editor.css index f0b2422630d..bbc9a31b504 100644 --- a/core/modules/ckeditor5/css/editor.css +++ b/core/modules/ckeditor5/css/editor.css @@ -24,3 +24,8 @@ .ck-editor__main > .ck-source-editing-area textarea { overflow: auto; } + +/* Enhance visibility of selected/active buttons on the toolbar. */ +.ck-toolbar__items .ck.ck-button.ck-on { + border: 1px solid var(--ck-color-button-on-color); +}