In highcharts's stacked bar chart, how can I remove the white space between different

Question

I have a stacked bar using highcharts. From the jsfiddle example, you can see that there is a white line between the green and blue? Is it possible to remove this? It triggers some issues in pdf.

http://jsfiddle.net/daxu/e777hgev/

labels: {
    formatter: function () {
    return this.value;
    },
    style: {
           color: 'black',
           fontFamily: 'DINPro',
           fontSize: '7.76px',
           fontWeight: 'normal'
          }
    },

Answer 1

This can be removed with the plotOptions.bar.borderWidth parameter. It defaults to 1px. You can set it like this to remove the border:

plotOptions: {
    series: {
        stacking: 'normal',
        borderWidth: 0
    },
    animation: false
},