html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.sparkline([2, 10, -7, 2, -9, 6, -15, 3]);

    chart.seriesType('column');

​

    // Set fill as a radial gradient for negative points.

    chart.negativeFill(['#FAFAFA', '#757575'], 0.5, 0.5, null, 0.9, 0.3, 0.81);

​

    chart.title({text: 'Set fill as a radial gradient for negative points', orientation: 'top'});

    chart.container('container');

    chart.draw();

});