html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.pyramid([

        {x: 'Physical', value: 125},

        {x: 'Data Link', value: 135},

        {x: 'Network', value: 125},

        {x: 'Transport', value: 145},

        {x: 'Session', value: 125},

        {x: 'Presentation', value: 155},

        {x: 'Application', value: 290}

    ]);

​

    // To change the way how context menu looks you need to change CSS.

    // By default CSS from AnyChart CDN is used: https://cdn.anychart.com/releases/8.13.0/css/anychart-ui.min.css

    // Download it, alter, upload to your server and link from your pages to change the look.

​

    // Get context menu.

    var contextMenu = chart.contextMenu();

​

    contextMenu.itemsFormatter(function (items) {

​

        items['custom-item'] = {

            index: 1000,

            text: 'Custom Context Menu Item',

            action: actionHandler

        };

​

        return items;

    });

​

    function actionHandler() {

        alert('Custom Item Clicked');

    }

​

    chart.title('Get and modify context menu. Right-click on the chart');

    chart.labels(false);

    chart.container('container');

    chart.draw();

​

});