@steroidsjs/ckeditor5/packages/ckeditor5-special-characters/theme/charactergrid.css

The development environment of CKEditor 5 – the best browser-based rich text editor.

/*
 * Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */

.ck.ck-character-grid {
	max-width: 100%;
	
	& .ck-character-grid__tiles {
		display: grid;
	}
}