/**
 * Add styles to an element.
 * @link https://js-toolkit.studiometa.dev/utils/css/addStyle.html
*/
export declare function add(elementOrElements: HTMLElement | HTMLElement[] | NodeListOf<HTMLElement>, styles: Partial<CSSStyleDeclaration>): void;
/**
 * Remove class names from an element.
 * @link https://js-toolkit.studiometa.dev/utils/css/removeStyle.html
*/
export declare function remove(elementOrElements: HTMLElement | HTMLElement[] | NodeListOf<HTMLElement>, styles: Partial<CSSStyleDeclaration>): void;