/// <reference types="react" />
import { t } from '../common';
export * from './util';
export declare const MEDIA_QUERY_RETINA = "@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi)";
export declare const image: (image1x: string | undefined, image2x: string | undefined, options?: t.CssFormatImageOptions) => t.ICssBackgroundImage;
export declare const toPositionEdges: (key: string, value?: any) => {
    position: string;
    top: string | number | undefined;
    right: string | number | undefined;
    bottom: string | number | undefined;
    left: string | number | undefined;
} | undefined;
export declare const formatPositionEdges: (key: string, target: any) => void;
export declare const transform: (style?: false | import("react").CSSProperties | t.CssValue | null | undefined) => import("react").CSSProperties | t.CssValue;
export declare const format: t.CssFormat;