@ckeditor/ckeditor5-image/theme/image.css

Image feature for CKEditor 5.

/*
 * 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
 */

.ck-content {
	& .image {
		display: table;
		clear: both;
		text-align: center;

		/* Make sure there is some space between the content and the image. Center image by default. */
		/* The first value should be equal to --ck-spacing-large variable if used in the editor context
	 	to avoid the content jumping (See https://github.com/ckeditor/ckeditor5/issues/9825). */
		margin: 0.9em auto;

		/* Make sure the caption will be displayed properly (See: https://github.com/ckeditor/ckeditor5/issues/1870). */
		min-width: 50px;

		& img {
			/* Prevent unnecessary margins caused by line-height (see #44). */
			display: block;

			/* Center the image if its width is smaller than the content's width. */
			margin: 0 auto;

			/* Make sure the image never exceeds the size of the parent container (ckeditor/ckeditor5-ui#67). */
			max-width: 100%;

			/* Make sure the image is never smaller than the parent container (See: https://github.com/ckeditor/ckeditor5/issues/9300). */
			min-width: 100%;

			/* Keep proportions of the block image if the height is set and the image is wider than the editor width.
			See https://github.com/ckeditor/ckeditor5/issues/14542. */
			height: auto;
		}
	}

	& .image-inline {
		/*
		 * Normally, the .image-inline would have "display: inline-block" and "img { width: 100% }" (to follow the wrapper while resizing).
		 * Unfortunately, together with "srcset", it gets automatically stretched up to the width of the editing root.
		 * This strange behavior does not happen with inline-flex.
		 */
		display: inline-flex;

		/* While being resized, don't allow the image to exceed the width of the editing root. */
		max-width: 100%;

		/* This is required by Safari to resize images in a sensible way. Without this, the browser breaks the ratio. */
		align-items: flex-start;

		/* When the picture is present it must act as a flex container to let the img resize properly */
		& picture {
			display: flex;
		}

		/* When the picture is present, it must act like a resizable img. */
		& picture,
		& img {
			/* This is necessary for the img to span the entire .image-inline wrapper and to resize properly. */
			flex-grow: 1;
			flex-shrink: 1;

			/* Prevents overflowing the editing root boundaries when an inline image is very wide. */
			max-width: 100%;
		}
	}
}

.ck.ck-editor__editable {
	/*
	 * Inhertit the content styles padding of the <figcaption> in case the integration overrides `text-align: center`
	 * of `.image` (e.g. to the left/right). This ensures the placeholder stays at the padding just like the native
	 * caret does, and not at the edge of <figcaption>.
	 */
	& .image > figcaption.ck-placeholder::before {
		padding-left: inherit;
		padding-right: inherit;

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

	/*
	 * See https://github.com/ckeditor/ckeditor5/issues/15115.
	 */
	& .image {
		z-index: 1;

		/*
		 * Make sure the selected image always stays on top of its siblings.
		 * See https://github.com/ckeditor/ckeditor5/issues/9108.
		 */
		&.ck-widget_selected {
			z-index: 2;
		}
	}

	/*
	 * See https://github.com/ckeditor/ckeditor5/issues/15115.
	 */
	& .image-inline {
		z-index: 1;

		/*
		 * Make sure the selected inline image always stays on top of its siblings.
		 * See https://github.com/ckeditor/ckeditor5/issues/9108.
		 */
		&.ck-widget_selected {
			z-index: 2;

			/*
			 * Make sure the native browser selection style is not displayed.
			 * Inline image widgets have their own styles for the selected state and
			 * leaving this up to the browser is asking for a visual collision.
			 */
			& ::selection {
				display: none;
			}
		}
	}

	/* Keep proportions of the inline image if the height is set and the image is wider than the editor width.
	See https://github.com/ckeditor/ckeditor5/issues/14542. */
	& .image-inline img {
		height: auto;
	}

	/* The inline image nested in the table should have its original size if not resized.
	See https://github.com/ckeditor/ckeditor5/issues/9117. */
	& td,
	& th {
		& .image-inline img {
			max-width: none;
		}
	}
}