Update app.py

app.py

@@ -153,7 +153,9 @@ st.set_page_config(layout="wide")
 # st.write(str(os.getcwd()))
 screen_width = streamlit_js_eval(label="screen.width",js_expressions='screen.width')
 screen_height = streamlit_js_eval(label="screen.height",js_expressions='screen.height')
-st.write(screen_height,screen_width)
+# st.write(screen_height,screen_width)
+if screen_width<=495:
+    st.header("Scroll down to use")
 img_selection=None
 
 # Specify canvas parameters in application