Highcharts: Labels Overlapping

2.3.2

HTML

<script src="http://code.highcharts.com/2.3.3/highcharts.src.js"></script>

<div id="container" style="width: 400px; height: 400px; border: 1px solid red;"></div>

JavaScript

var chart = new Highcharts.Chart({
    chart: {
        type: 'pie',
        renderTo: 'container',
        margin: [0,0,0,0],
        spacing: [0,0,0,0]
    },
    
    plotOptions: {
        pie: {
            size: "100%",
            dataLabels: {
                enabled: false
            }
        }
    },

    credits: {
        enabled: false
    },

    title: {
        text: null
    },
   
    series: [{
        data: [
            ['Firefox',   44.2],
            ['IE7',       26.6],
            ['IE6',       20],
            ['Chrome',    3.1],
            ['Other',    5.4]
        ]
    }]
});