metamask-extension/ui/components/app/modal/modal-content/modal-content.component.js

import React, { PureComponent } from 'react';
import PropTypes from 'prop-types';

export default class ModalContent extends PureComponent {
  static propTypes = {
    title: PropTypes.string,
    description: PropTypes.string,
  };

  render() {
    const { title, description } = this.props;

    return (
      <div className="modal-content">
        {title ? <div className="modal-content__title">{title}</div> : null}
        {description && (
          <div className="modal-content__description">{description}</div>
        )}
      </div>
    );
  }
}