text: /**
   * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
   * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
   */
  
  /* globals window, document */
  
  /**
   * Returns the `config.toolbar.viewportTopOffset` config value for editors using floating toolbars that
   * stick to the top of the viewport to remain visible to the user.
   *
   * The value is determined in styles by the `--ck-snippet-viewport-top-offset` custom property
   * and may differ e.g. according to the used media queries.
   *
   * @returns {Number} The value of the offset.
   */
  window.getViewportTopOffsetConfig = function() {
    const documentElement = document.documentElement;
  
    return parseInt(window.getComputedStyle(documentElement).getPropertyValue('--ck-snippet-viewport-top-offset'));
  };
  