Highcharts treemap top and left borders missing

我使用Highcharts創建了一個樹形圖，但缺少頂部和左邊框。我一直在閱讀文檔，但找不到任何有用的信息。Highcharts treemap top and left borders missing

我已經創建了一個Codepen here。您可以看到，在黑色背景下，系列頂部和左側的邊界不可見。我認爲他們在那裏，但也許圖表是通過一個像素或某物抵消X/Y。

Highcharts.setOptions({ 
 
    colors: ['#263542', '#3d4d5d', '#41474d', '#515961', '#292e33', '#24445e'], 
 
    lang: { 
 
    thousandsSep: ',' 
 
    } 
 
}); 
 

 
Highcharts.chart('treemap', { 
 
    chart: { 
 
    backgroundColor: 'rgba(255,255,255,0)', 
 
    borderColor: 'rgb(255,255,255)' 
 
    }, 
 
    credits: { 
 
    enabled: false 
 
    }, 
 
    plotOptions: { 
 
    series: { 
 
     colorByPoint: true, 
 
     borderColor: 'rgb(71, 116, 135)', 
 
     borderWidth: 1, 
 
     dataLabels: { 
 
     enabled: true, 
 
     style: { 
 
      textOutline: 'none', 
 
      fontFamily: 'Roboto', 
 
      fontWeight: '300', 
 
      fontSize: '1rem' 
 
     } 
 
     } 
 
    } 
 
    }, 
 
    tooltip: { 
 
    valuePrefix: '£' 
 
    }, 
 
    series: [{ 
 
    type: 'treemap', 
 
    layoutAlgorithm: 'squarified', 
 
    data: [{ 
 
     name: 'Indices', 
 
     value: 230000, 
 
    }, { 
 
     name: 'Forex', 
 
     value: 120000, 
 
    }, { 
 
     name: 'Shares', 
 
     value: 55000, 
 
    }, { 
 
     name: 'Pension', 
 
     value: 55000, 
 
    }, { 
 
     name: 'ISA', 
 
     value: 20000, 
 
    }] 
 
    }], 
 
    title: { 
 
    text: '' 
 
    }, 
 
    legend: { 
 
    enabled: false 
 
    } 
 
});

body { 
 
    background: #000; 
 
} 
 

 
#treemap { 
 
    width: 500px; 
 
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<script src="https://code.highcharts.com/highcharts.js"></script> 
 
<script src="https://code.highcharts.com/modules/treemap.js"></script> 
 
<div id="treemap"></div>

來源

2017-09-05 dom_ahdigital