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, capital: "Brussels" },

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

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

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

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

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

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

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

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

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

      ]} 

    ];

​

    // create a chart and set the data

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

​

    /* ajust the font size of labels

    according to the size of tiles */

    chart.labels().adjustFontSize(true);

​

    // set the chart title

    chart.title().useHtml(true);

    chart.title("Treemap: Labels and Tooltips (Adjusting Font Size)<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();

});