import { AttachNode } from '../../common';
export declare function getElmCssPropValue(element: HTMLElement, propName: string): string;
export declare function isFixed(element: HTMLElement): boolean;
export declare function getRelativePosition(elm: HTMLElement, relativeElm?: HTMLElement): {
    top: number;
    left: number;
};
export declare function getTargetElm(elm: AttachNode): HTMLElement;
export declare function getScrollParent(element: HTMLElement): HTMLElement;
export declare function scrollToParentVisibleArea(element: HTMLElement): void;
export declare function scrollToElm(elm: HTMLElement): void;