    <p>Click 'Enter XR' to see content</p>
  </main>
  <script type="module">
    import { WebXRButton } from './js/util/webxr-button.js';
    import { Scene } from './js/render/scenes/scene.js';
    import { Node } from './js/render/core/node.js';
    import { Renderer, createWebGLContext } from './js/render/core/renderer.js';
    import { Gltf2Node } from './js/render/nodes/gltf2.js';
    import { SkyboxNode } from './js/render/nodes/skybox.js';
    import { BoxBuilder } from './js/render/geometry/box-bui