html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

​

    // create data

    var data = [

      {

        id: "A",

        name: "Location A",

        child_items: [

          {

            id: "1",

            name: "Server 1",

            intervals: [

              {id: "1_1", start: "2018-01-05", end: "2018-01-25"},

              {id: "1_2", start: "2018-01-28", end: "2018-02-22"},

              {id: "1_3", start: "2018-03-03", end: "2018-03-25"}

          ]},

          {

            id: "2",

            name: "Server 2",

            intervals: [

              {id: "2_1", start: "2018-01-07", end: "2018-02-15"},

              {id: "2_2", start: "2018-02-26", end: "2018-03-20"}

          ]}

      ]},

      {

        id: "B",

        name: "Location B",

        child_items: [

          {

            id: "3",

            name: "Server 3",

            intervals: [

              {id: "3_1", start: "2018-01-04", end: "2018-03-25"}

          ]}

      ]}

    ];

​

    // create a data tree

    var treeData = anychart.data.tree(data, "as-tree", null, {children: "child_items"});

​

    // map the data

    var mapping = treeData.mapAs({periods: "intervals"});

​

    // create a chart

    var chart = anychart.ganttResource();

    // set the data

    chart.data(mapping);

​

    // set the container id

    chart.container("container");

​

    // initiate drawing the chart

    chart.draw();

​

    // fit elements to the width of the timeline

    chart.fitAll();

});