html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.column();

    var series = chart.column([12, 25, 18, 29]);

    var labels = series.labels();

    labels.enabled(true);

    labels.height(25);

    labels.background({fill: "#FFFFFF"});

    labels.format(function () {

        return "Value: " + this.value

    });

    labels.maxFontSize(20); // sets maximum font size

    labels.adjustFontSize(true);

    chart.container("container");

    chart.draw();

});