html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

​

    // create data

    var data = [

      {name:   "European Union", children: [

        {name: "Belgium",        value: 11443830},

        {name: "France",         value: 64938716},

        {name: "Germany",        value: 80636124},

        {name: "Greece",         value: 10892931},

        {name: "Italy",          value: 59797978},

        {name: "Netherlands",    value: 17032845},

        {name: "Poland",         value: 38563573},

        {name: "Romania",        value: 19237513}, 

        {name: "Spain",          value: 46070146},

        {name: "United Kingdom", value: 65511098}  

      ]} 

    ];

​

    // create a chart and set the data

    var chart = anychart.treeMap(data, "as-tree");

​

    // create and configure a color scale.

    var customColorScale = anychart.scales.linearColor();

    customColorScale.colors(["#00ccff", "#ffcc00"]);

​

    // set the color scale as the color scale of the chart

    chart.colorScale(customColorScale);

​

    // add a color range

    chart.colorRange().enabled(true);

    chart.colorRange().length("90%");

​

    // set the chart title

    chart.title().useHtml(true);

    chart.title("Treemap: Color Scale (Linear)<br><br>" +

                "<span style='font-size:12; font-style:italic'>" +

                "Top 10 European Union Countries by Population</span>");

​

    // set the container id

    chart.container("container");

​

    // initiate drawing the chart

    chart.draw();

});