ElementStacks

HTML

<script src="http://highcharts.com/js/testing.js"></script>
<div id="container" style="height: 400px; width: 500px"></div>

JavaScript

var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container'
    },

    series: [{
        color: 'blue',
        marker: {
            symbol: 'circle'
        },
        data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0]
    }, {
        color: 'blue',
        marker: {
            symbol: 'circle'
        },
        data: [135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
    }]
});