import { NgZone } from '@angular/core';
import * as i0 from "@angular/core";
/** @dynamic - allows Document in ngc build */
export declare class CssPropsService {
    private document;
    private ngZone;
    constructor(document: Document, ngZone: NgZone);
    updateCustomCss(styleId: string, customCss: string): void;
    updateDocumentVars(cssProps: any): void;
    updateElementVars(element: HTMLElement, cssProps: any): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<CssPropsService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<CssPropsService>;
}