import React, { ReactNode } from 'react';
import { ButtonBaseProps, PortalProps } from '@mui/material';
export interface BypassBlockProps extends ButtonBaseProps<'a'> {
    /**
     * Button label, e.g. 'Skip to content'
     */
    children: ReactNode;
    /**
     * ID of content section, e.g. '#content'
     * @default '#'
     */
    href: string;
    /**
     * Prevent push of new link into history stack
     * @default false
     */
    replace?: boolean;
    /**
     * Programmatically control if button should be visible
     * @default false
     */
    active?: boolean;
    /**
     * props applied to portal moving the button at the top
     */
    portalProps?: PortalProps;
}
/**
 * Accessibility button to quickly scroll into the content area.
 *  - first focusable element on the page
 *  - only visible when focused
 */
export declare const BypassBlock: React.FC<BypassBlockProps>;