Highcharts Candlestick & Volume chart的y轴大小可调为一体

Highcharts.chart('container', {
    chart: {
        type: 'candlestick'
    },
    title: {
        text: 'Candlestick & Volume Chart'
    },
    xAxis: {
        type: 'datetime'
    },
    yAxis: [{
        labels: {
            align: 'right',
            x: -3
        },
        title: {
            text: 'Price'
        },
        height: '60%',
        lineWidth: 2
    }, {
        labels: {
            align: 'right',
            x: -3
        },
        title: {
            text: 'Volume'
        },
        top: '65%',
        height: '35%',
        offset: 0,
        lineWidth: 2
    }],
    series: [{
        type: 'candlestick',
        name: 'AAPL',
        data: [
            [1488297600000, 128.64, 129.12, 127.65, 128.84],
            // ... more data
        ]
    }, {
        type: 'column',
        name: 'Volume',
        data: [
            [1488297600000, 123456],
            // ... more data
        ],
        yAxis: 1
    }]
});