Untitled

page_bg_img = '''
<style>
[data-testid="stAppViewContainer"] {
background-image: url("https://erp.today/wp-content/uploads/2022/12/Artificial_Intelligence.jpg");
background-size: cover;
}
[data-testid="stHeader"]{
background: lightblue;
}
</style>
'''

st.markdown(page_bg_img, unsafe_allow_html=True)