@ckeditor/ckeditor5-theme-lark/theme/ckeditor5-ui/components/spinner/spinner.css

A bright theme for CKEditor 5.

/*
 * Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
 */

:root {
	--ck-toolbar-spinner-size: 18px;
}

.ck.ck-spinner-container {
	width: var(--ck-toolbar-spinner-size);
	height: var(--ck-toolbar-spinner-size);
	animation: 1.5s infinite ck-spinner-rotate linear;

	@media (prefers-reduced-motion: reduce) {
		animation-duration: 3s;
	}
}

.ck.ck-spinner {
	width: var(--ck-toolbar-spinner-size);
	height: var(--ck-toolbar-spinner-size);
	border-radius: 50%;
	border: 2px solid var(--ck-color-text);
	border-top-color: transparent;
}

@keyframes ck-spinner-rotate {
	to {
		transform: rotate(360deg)
	}
}