content: import Highcharts from 'highcharts/highstock';
  import React from 'react';
  import {render} from 'react-dom';
  
  import HighchartsMore from 'highcharts/highcharts-more';
  import HighchartsExporting from 'highcharts/modules/exporting';
  import HighchartsHeatmap from 'highcharts/modules/heatmap';
  import HighchartsSolidGauge from 'highcharts/modules/solid-gauge';
  
  import App from './App';
  
  HighchartsMore(Highcharts);
  HighchartsExporting(Highcharts);
  HighchartsHeatmap(Highcharts);
  HighchartsSolidGauge(Highcharts);
  
  const div = document.createElement('div');
  
  document.body.appendChild(div);
  
  document.body.style.boxSizing = 'border-box';
  document.body.style.margin = 0;
  document.body.style.padding = '0 15px';
  
  render(<App />, div);
  