import { Stringable, Stringlike } from './Stringable';
declare type CssClause = [string, Stringlike];
declare class CssBuilder implements Stringable {
    private readonly clauses;
    protected constructor(clauses: CssClause[]);
    static new(): CssBuilder;
    add(...clause: CssClause): CssBuilder;
    toString(): string;
}
export { CssBuilder };
export type { CssClause };