Update app.py

app.py

@@ -23,11 +23,12 @@ st.markdown(
     <style>
         @import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');
 
-        body {
-            background: url('https://www.dekowizja.pl/img2/1000/78118676/obraz-na-plotnie-laka-slonce-ziarno-piekny.jpg');
-            background-size: cover;
-            color: #333;
-            font-family: 'Roboto', sans-serif;
+}
+    .main {
+        background-color: #000000;
+        color: #ECF0F1;
+        background-image: url('https://s1.1zoom.me/big0/395/Fields_Sunrises_and_499477.jpg');
+        background-size: cover;
         }
         .stButton>button {
             background-color: #4CAF50;