Update app.py

app.py

@@ -228,10 +228,16 @@ def generate(input_dict: dict, chat_history: list[dict],
 
 
 css = '''
-.gradio-container{max-width: 1000px !important}
-h1{text-align:center}
+.gradio-container {
+    max-width: 1000px !important;
+    margin: 0 auto;          /* centers the container horizontally */
+    text-align: center;      /* centers text and inline elements */
+}
+h1 {
+    text-align: center;      /* ensures any H1 headers are also centered */
+}
 footer {
-    visibility: hidden
+    visibility: hidden;      /* hides the footer */
 }
 '''