html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.gauges.circular([{value: 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();

});