content: import React from 'react';
  import Chance from 'chance';
  
  const chance = new Chance();
  
  const style = {
    border: '1px solid black',
  };
  
  class DemoItem extends React.Component {
    constructor(props) {
      super(props);
      this.state = {
        text: chance.sentence({words: chance.natural({min: 1, max: 40})})
      };
    }
  
    shouldComponentUpdate() {
      return false;
    }
  
    render() {
      return (
        <div style={style}>
          {this.state.text}
        </div>
      );
    }
  }
  
  export default DemoItem