Update static html display

app.py

@@ -630,10 +630,22 @@ def main():
                             kadichat_tmp_link
                         )
                     )
+
             with gr.Tab("RAG enhanced with Knowledge Graph (dev) 🔎"):
                 kg_tmp_link = "https://kadi-iam-kadikgraph.static.hf.space"
+                gr.Markdown("[If rendering fails, look at the graph here]https://kadi-iam-kadikgraph.static.hf.space")
                 with gr.Blocks(css="""footer {visibility: hidden};""") as preview_tab:
-                    gr.HTML("""<iframe src="{}" style="width:100%; height:1024px; overflow:auto"></iframe>""".format(kg_tmp_link))
+                    gr.HTML(
+                        """<iframe
+                        src="{}"
+                        frameborder="0"
+                        width="850"
+                        height="450"
+                        ></iframe>
+                        """.format(
+                            kg_tmp_link
+                        )
+                    )
 
         # About information
         with gr.Tab("About 📝"):