medium-rebem-6.js

import React from 'react';
import Modal from 'react-modal2';
import { stringify as b } from 'rebem-classname';

const block = 'popup';

class Popup extends React.Component {
  render() {
    return (
      <Modal
        backdropClassName={b({ block, elem: 'overlay' })}
        modalClassName={b({ block, mods: { visible: this.props.visible } })}>
        {this.props.children}
      </Modal>
    );
  }
}