Highcharts.chart('container', {
    chart: {
        height: 80
    },
    title: {
        text: 'JS error due to negative height in legend #3080'
    },

    xAxis: {
        categories: [
            'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
            'Oct', 'Nov', 'Dec'
        ]
    },
    legend: {
        layout: 'vertical',
        floating: true,
        backgroundColor: '#FFFFFF',
        align: 'left',
        verticalAlign: 'top',
        y: 60,
        x: 90
    },
    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
        ]
    }]
});