/**
 * The width of the parent popup.
 * This variable is placed on the 'previous' container and stores the width of the popup when the previous content was rendered.
 * It can be used to freeze the dimensions of the popup when animating between different content.
 */
export declare const popupWidth = "--popup-width";
/**
 * The height of the parent popup.
 * This variable is placed on the 'previous' container and stores the height of the popup when the previous content was rendered.
 * It can be used to freeze the dimensions of the popup when animating between different content.
 */
export declare const popupHeight = "--popup-height";