Update app.py

app.py

@@ -821,17 +821,17 @@ elif st.session_state.current_index < len(st.session_state.data):
 
     show_fields(STEPS[step])
 
-    c1, c2, c3 = st.columns([1,5,2])
+    c1, c2, c3 = st.columns([5,5,2])
+#    with c1:
+#        if st.button("<< Previous"):
+#            if step > 0:
+#                st.session_state.step -= 1
+#                st.rerun()
+#            else:
+#                st.session_state.current_index -= 1
+#                st.session_state.step = total_steps - 1
+#                st.rerun()
     with c1:
-        if st.button("<< Previous"):
-            if step > 0:
-                st.session_state.step -= 1
-                st.rerun()
-            else:
-                st.session_state.current_index -= 1
-                st.session_state.step = total_steps - 1
-                st.rerun()
-    with c2:
         label = " **Submit >>**" if step < total_steps - 1 else "**Submit & next session**"
         if st.button(label):
             if validate_current_page(STEPS[step], st.session_state.current_index):