export declare const getDocumentRemSize: () => number;
export declare const round: (n: number) => number;
/**
 * Converts the provided px size to rem based on the default font size of 16px unless
 * the HTML font size has been previously defined with setHTMLFontSize().
 * @param valueInPx - The px value to convert to rem.
 * @param baseRemSize - Rem size to use for conversions. Optional - document's font size will be taken otherwise.
 * @example
 * ```
 * // Returns '1rem' for default document font size (16px).
 * pxToRem(16)
 *
 * // Returns '2rem'.
 * pxToRem(32, 16)
 * ```
 * @returns The value converted to the rem.
 */
export declare const pxToRem: (valueInPx: number, baseRemSize?: number) => string;