Update app.py

app.py

@@ -215,7 +215,8 @@ demo = gr.Blocks(css=css)
 
 with demo:
     gr.HTML("""
-    <pre style="text-align: center; font-family: monospace; line-height: 1.2; font-size: 24px; color: #00ffea; background-color: black; display: inline-block; padding: 10px;">
+    <div style="display: flex; justify-content: center; width: 100%; background-color: black; padding: 20px 0;">
+        <pre style="font-family: monospace; line-height: 1.2; font-size: 24px; color: #00ffea; margin: 0;">
     ╔═══════════════════╗
     ║   pleias-RAG 1.0  ║
     ╚═══════════════════╝