index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <!-- Use correct character set. -->
    <meta charset="utf-8">
    <!-- Tell IE to use the latest, best version. -->
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <!-- Make the application on mobile take up the full browser screen and disable user scaling. -->
    <meta name="viewport"
          content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
    <title>cesium-geometry</title>
    <script src=./node_modules/cesium/Build/CesiumUnminified/Cesium.js></script>
    <!-- <script src=./Cesium/Cesium.js></script>-->
    <style>
        @import url(./node_modules/cesium/Build/CesiumUnminified/Widgets/widgets.css);

        html,
        body,
        #cesiumContainer {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
            overflow: hidden;
        }

        button {
            position: absolute;
            left: 0px;
            top: 0px;
        }
    </style>
</head>

<body>
<div id="cesiumContainer"></div>
<button onclick="change('elliposid')" style="left:0px;">
    elliposid
</button>
<button onclick="change('polylineArrow')" style="left:80px;">
    polylineArrow
</button>
<button onclick="change('sensor')" style="left:200px;">
    sensor
</button>
<script>
    var viewer = new Cesium.Viewer('cesiumContainer');

    function change(d) {
        location.href = 'Apps/' + d + '.html';
    }
</script>
</body>

</html>