export declare const SCROLL_BAR_WIDTH: number;
export declare const IS_IE: boolean;
export declare const IS_EDGE: boolean | null;
export declare const IS_CHROME: boolean | null;
export declare const IS_SAFARI: boolean | null;
export declare const TR_HOVER_CLASS = "brick-table-tr-hover";
export declare const TR_HOVER_KEY_CLASS_PREFIX = "hover-key-";