Update app.py

app.py

@@ -8,18 +8,17 @@ import squarify
 import numpy as np
 
 # Define the HTML and CSS styles
-html_temp = """
-
-<style>
+st.markdown(
+    """
+    <style>
     body {
         background-color: #000000;
         color: #ffffff;
     }
-</style>
-"""
-
-# Display the HTML and CSS styles
-st.markdown(html_temp, unsafe_allow_html=True)
+    </style>
+    """,
+    unsafe_allow_html=True
+)
 st.header(":white[My Streamlit App with HTML and CSS]")
 # Add some text to the app
 st.write(":white[This is my Streamlit app with HTML and CSS formatting.]")