html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.pyramid([

        {x: 'Physical', value: 125},

        {x: 'Data Link', value: 125},

        {x: 'Network', value: 125},

        {x: 'Transport', value: 125},

        {x: 'Session', value: 125},

        {x: 'Presentation', value: 125},

        {x: 'Application', value: 290, label: {anchor: 'center-top'}}

    ]);

​

    // Set stroke.

    chart.stroke(function () {

        return anychart.color.setThickness(anychart.color.darken(this.sourceColor), 3);

    });

​

    chart.title('Set stroke parameter as a function');

    chart.labels({position: 'inside'});

    chart.container('container');

    chart.draw();

});