@ckeditor/ckeditor5-mention/dist/index-editor.css

Mention feature for CKEditor 5.

/**
 * @license Copyright (c) 2003-2025, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
 */
:root{
	--ck-mention-list-max-height:300px;
}

.ck.ck-mentions{
	max-height:var(--ck-mention-list-max-height);

	overflow-y:auto;
	overflow-x:hidden;

	overscroll-behavior:contain;
}

.ck.ck-mentions > .ck-list__item{
		overflow:hidden;
		flex-shrink:0;
	}

div.ck.ck-balloon-panel.ck-mention-balloon{
	z-index:calc( var(--ck-z-dialog) + 1);
}