ElementStacks

HTML

<script src="http://highcharts.com/js/testing.js"></script>
<div id="container" style="height: 200px"></div>

JavaScript

var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container',
        defaultSeriesType: 'bar'
    },
    title: {
            enabled: false
        },
    xAxis: {
        categories: ['Jan', 'Feb']
    },
    
    plotOptions: {
        series: {
            pointPadding: 0,
            colorByPoint:true  
        }
    },
    
    series: [{
        data: [29.9, 71.5]
    }]
});