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.type("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: "Setfill as a radial gradient for negative points", orientation: "top"});

    chart.container("container");

    chart.draw();

});