Update app.py

app.py

@@ -37,7 +37,7 @@ with gr.Blocks(
     analytics_enabled=True,
     fill_height=True
 ) as app:
-    gr.Markdown("<center><h2>PDF Summarizer</h2></center>")
+    gr.HTML("<div style='text-align:center;'><h2>PDF Summarizer</h2></div>")
     with gr.Row():
         
         api_key = gr.Text(label="Gemini API Key", placeholder="Enter your Google Gemini API key here")
@@ -51,7 +51,7 @@ with gr.Blocks(
 
     with gr.Column():
       with gr.Row():
-        gr.Markdown("<center><h2>Summary Output</h2></center>")
+        gr.HTML("<div style='text-align:center;'><h2>Summary Output</h2></div>")
         out = gr.Markdown()
 
     btn.click(fn=pdfSummarizer, inputs=[api_key, pdf_input, summary_type], outputs=out)