Update app.py

app.py

@@ -1,12 +1,12 @@
 import streamlit as st
 
-   page_element="""
-<style>
+page_element="""
+    <style>
 [data-testid="stAppViewContainer"]{
   background-image: url("https://www.freepik.com/free-photo/ai-technology-brain-background-digital-transformation-concept_17164388.htm#fromView=keyword&page=1&position=1&uuid=324bf130-9bae-44b7-bac1-4f06c199a33c");
   background-size: cover;
 }
-</style>
+    </style>
 """
 st.markdown(page_element, unsafe_allow_html=True)