html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.gauges.circular([20]);

    chart.axis();

​

    // Set knob pointer.

    chart.knob({fill: "#90CAF9", stroke: "#1976D2"});

​

    chart.title("Set knob pointer as an object");

    chart.container("container");

    chart.draw();

});