JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="http://code.highcharts.com/modules/exporting.js"></script>
<div id="container" style="min-width: 310px; max-width: 800px; height: 400px; margin: 0 auto"></div>

JavaScript

$(function () {
    $('#container').highcharts({
        chart: {
            type: 'bar',
            events: {
                load: function () {
                    var s1900 = this.series[0].data;
                    var s2008 = this.series[1].data;
                    var newData = [];
                    if (s1900.length == s2008.length) {
                        for (var i = 0; i < s1900.length; i++) {
                            newData.push(s1900[i].y + s2008[i].y);
                        }
                    }
                    this.addSeries({
                        name: 'Cumulative',
                        xAxis: 1,
                        yAxis: 1,
                        type: "spline",
                        data: newData
                    });
                }
            }
        },
        title: {
            text: 'Historic World Population by Region'
        },
        subtitle: {
            text: 'Source: Wikipedia.org'
        },
        xAxis: [{
            categories: ['Africa', 'America', 'Asia', 'Europe', 'Oceania'],
            title: {
                text: null
            }
        }, {
            categories: ['Africa', 'America', 'Asia', 'Europe', 'Oceania'],
            opposite: true,
            title: {
                text: null
            }
        }],
        yAxis: [{
            min: 0,
            endOnTick: false,
            title: {
                text: 'Population (millions)',
                align: 'high'
            }
        }, {
            min: 0,
            opposite: true,
            reversed: false,
            endOnTick: true,
            title: {
                text: 'Cumulative Population (millions)',
                align: 'high'
            }
        }],
        tooltip: {
            valueSuffix: ' millions'
        },
        plotOptions: {
            bar: {
                dataLabels: {
                    enabled: true
                }
            }
        },
        legend: {
  ...