ElementStacks

HTML

<script src="http://highcharts.com/js/testing.js"></script>
<div id="container" class="chart" style="height: 400px; width: 500"></div>

CSS

.chart {
    width: 500px;
    height: 500px;
    margin: 0 auto;
    background: #eee;
}

JavaScript

var data = [['Firefox',   44.2],['IE',10]];

var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container',
        defaultSeriesType: 'pie'
    },
    
    series: [{
        borderColor: '#00f',
        borderWidth: data.length > 1 ? 5 : 0,
        innerSize: 100,
        shadow: false,
        data: data
    }]
});