import React, { Component } from 'react';

export default class HelloWorld extends Component {
  render() {
    return (
      <h1 style={{color: 'red' }}>Hello, world</h1>
    );
  }
}

import React, { Component } from 'react';

export default class HelloWorld extends Component {
  render() {
    return (
      <h1 style={{ color: 'red' }}>Hello, world</h1>
    );
  }
}

Fix lint error