export declare function compareFontSize(fontSizeA: string, fontSizeB: string): number;
export declare function parseFontSize(fontSize: string): {
    value: number;
    unit: string;
} | undefined;
export declare function nodeHasFontSize(node: Node, container: Node): boolean;
export declare function getFontSizeForNode(node: Node, container: Node): string;
export declare function removeFontSizeFromElement(element: Element): Node | null;
export declare function removeFontSizeFromRange(container: Node, range: Range): Range;
export declare function applyFontSizeToElement(element: HTMLElement | SVGElement, fontSize: string): void;
export declare function setFontSizeInRange(container: Node, range: Range, fontSize: string): Range;