Highcharts.chart('container', {

    chart: {
        marginTop: 70
    },

    xAxis: {
        categories: [
            'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
            'Oct', 'Nov', 'Dec'
        ]
    },

    series: [{
        data: [
            29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1,
            95.6, 54.4
        ]
    }],

    navigation: {
        buttonOptions: {
            height: 40,
            width: 48,
            symbolSize: 24,
            symbolX: 23,
            symbolY: 21,
            symbolStrokeWidth: 2
        }
    }
});