<xr-demo-viewer
  title="KHR_lights_punctual"
  intro="glTF Punctual Light 支持。Copyright 2021 DGG. CC BY 4.0 International https://creativecommons.org/licenses/by/4.0/"
>
  <xr-gltf-lightsPunctual
    disable-scroll
    id="main-frame"
    width="{{renderWidth}}"
    height="{{renderHeight}}"
    style="width:{{width}}px;height:{{height}}px;top:{{top}}px;left:{{left}}px;display:block;"
    a="123"
  />
</xr-demo-viewer>