/**
 * Parses a CSS length string (px, %, vw, vh) into a numeric pixel value.
 * @param measure - CSS length string to parse.
 * @param absolute - Parent size used when resolving percentage values.
 * @returns The resolved pixel length, or undefined when measure is empty.
 */
export declare const parseMeausureString: (measure?: string, absolute?: number) => number | undefined;
/**
 * Splits a CSS padding shorthand into top/right/bottom/left parts.
 * @param padding - CSS padding string with 1–4 values.
 * @returns An object of padding sides present in the shorthand.
 */
export declare const parsePadding: (padding: string) => {
    bottom: string;
    left: string;
    right: string;
    top: string;
} | {
    bottom: string;
    right: string;
    top: string;
    left?: undefined;
} | undefined;
/**
 * Computes the total horizontal padding (left + right) of an element in pixels.
 * @param element - Element whose computed padding is measured.
 * @returns Sum of left and right padding in pixels.
 */
export declare const getActualPaddingX: (element: HTMLElement) => number;
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