import * as React from "react";
export declare type HorizonProps = {
    readonly style?: React.CSSProperties;
    readonly className?: string;
    readonly flex?: boolean;
    readonly scroll?: boolean;
};
export declare class Horizon extends React.Component<HorizonProps> {
    private _div;
    private readonly _horizonStyle;
    constructor(props: HorizonProps);
    componentWillUnmount(): void;
    render(): JSX.Element;
    private _mountRef;
    private _handleNormalMode;
    private _handleAggressiveMode;
}