ckeditor/ckeditor5-block-quote

/**
 * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */

.ck-content blockquote {
    /* See #12 */
    overflow: hidden;

    /* https://github.com/ckeditor/ckeditor5-block-quote/issues/15 */
    padding-right: 1.5em;
    padding-left: 1.5em;

    margin-left: 0;
    margin-right: 0;
    font-style: italic;
    border-left: solid 5px hsl(0, 0%, 80%);
}

.ck-content[dir="rtl"] blockquote {
    border-left: 0;
    border-right: solid 5px hsl(0, 0%, 80%);
}