html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.cartesian();

    var series = chart.rangeArea([

        [0, 2, 3],

        [1, 3, 6],

        [2, 2, 4]

    ]);

    series.fill(["#263238", "#FFFFFF"], 45, true, 0.5); // sets linear gradient fill

    chart.container("container");

    chart.draw();

});