html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.gauges.circular([{value: 7.5}]);

    chart.axis();

    chart.needle();

​

    // Set radial fill.

    chart.fill(['#FEFEFE', '#616161'], 0.5, 0.5, null, 0.6, 0.8, 0.31);

​

    chart.title('Set chart fill as a radial gradient');

    chart.container('container');

    chart.draw();

});