@ckeditor/ckeditor5-ui/theme/components/panel/fakepanel.css

The UI framework and standard UI library of CKEditor 5.

/*
 * 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
 */

.ck .ck-fake-panel {
	position: absolute;

	/* Fake panels should be placed under main balloon content. */
	z-index: calc(var(--ck-z-panel) - 1);
}

.ck .ck-fake-panel div {
	position: absolute;
}

.ck .ck-fake-panel div:nth-child( 1 ) {
	z-index: 2;
}

.ck .ck-fake-panel div:nth-child( 2 ) {
	z-index: 1;
}