@ckeditor/ckeditor5-table/theme/tablecaption.css

/*
 * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */

:root {
	--ck-color-table-caption-background: hsl(0, 0%, 97%);
	--ck-color-table-caption-text: hsl(0, 0%, 20%);
	--ck-color-table-caption-highlighted-background: hsl(52deg 100% 50%);
}

/* Content styles */
.ck-content .table > figcaption {
	display: table-caption;
	caption-side: top;
	word-break: break-word;
	text-align: center;
	color: var(--ck-color-table-caption-text);
	background-color: var(--ck-color-table-caption-background);
	padding: .6em;
	font-size: .75em;
	outline-offset: -1px;
}

/* Editing styles */
.ck.ck-editor__editable .table > figcaption {
	&.table__caption_highlighted {
		animation: ck-table-caption-highlight .6s ease-out;
	}

	&.ck-placeholder::before {
		padding-left: inherit;
		padding-right: inherit;

		/*
		 * Make sure the table caption placeholder doesn't overflow the placeholder area.
		 * See https://github.com/ckeditor/ckeditor5/issues/9162.
		 */
		white-space: nowrap;
		overflow: hidden;
		text-overflow: ellipsis;
	}
}

@keyframes ck-table-caption-highlight {
	0% {
		background-color: var(--ck-color-table-caption-highlighted-background);
	}

	100% {
		background-color: var(--ck-color-table-caption-background);
	}
}