I am a beginner trying to learn to Cesium JS for Web GIS projects.I downloaded and installed the Cesium 1.119 library in my laptop. Now I am not able to see the basic globe part on the screen. I have attached the code and an image of the current result here. Can someone please help me out?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src="http://localhost:8085/3d/libs/Cesium-1.119/Build/Cesium/Cesium.js"></script>
<script src="http://localhost:8085/3d/libs/Cesium-1.119/Apps/Sandcastle/Sandcastle-header.js"></script>
</head>
<style>
@import url(http://localhost:8085/3d/libs/Cesium-1.119/Apps/Sandcastle/CesiumSandcastle.css);
@import url(http://localhost:8085/3d/libs/Cesium-1.119/Apps/Sandcastle/templates/bucket.css);
</style>
<body>
<div id="cesiumContainer" class="fullSize"></div>
<div id="loadingOverlay">
<h1>Loading...</h1>
</div>
<div id="toolbar"></div>
<script type="text/javascript">
var viewer = new Cesium.Viewer("cesiumContainer",{
Geocoder: false,
Animation: true,
CreditsDisplay: false,
Timeline: false,
FullscreenButton: false
});
</script>
</body>
</html>