diff --git a/docs/index.rst b/docs/index.rst
index ae164417..d782080b 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -83,9 +83,10 @@ As an example, consider the design of a tea cup:
 
 .. raw:: html
 
-    <model-viewer src="_static/tea_cup.glb" alt="A tea cup modelled in build123d" auto-rotate camera-controls style="width: 100%; height: 100%"></model-viewer>
+    <script type="module" src="https://unpkg.com/@google/model-viewer/dist/model-viewer.min.js"></script>
+    <model-viewer poster="_images/tea_cup.png" src="_static/tea_cup.glb" alt="A tea cup modelled in build123d" auto-rotate camera-controls style="width: 100%; height: 100%"></model-viewer>
 
-.. image:: tea_cup.png
+.. .. image:: tea_cup.png
   :align: center
 
 .. note::