Update app.py

app.py

@@ -30,8 +30,8 @@ def determine_winner(player_move, computer_move):
 st.markdown("""
     <style>
         button {
-            height: 4rem;
-            width: 4rem;
+            height: 10rem;
+            width: 10rem;
             font-size:40px !important;
         }
     </style>