Update configs/html_features.py

configs/html_features.py

@@ -3,5 +3,20 @@ HTML_WRAPPER = """
 """
 
 def set_image(url):
-    HTML_BACKGROUND_IMG = f"<style> body {{ background-image: url('{url}'); background-size: 100%; background-repeat: no-repeat; }} </style>"
+    HTML_BACKGROUND_IMG = f"""
+    <style>
+        body {{
+            background-image: url('{url}');
+            background-size: cover;
+            background-repeat: no-repeat;
+            background-position: center center;
+        }}
+
+        @media (max-width: 768px) {{
+            body {{
+                background-size: auto;
+            }}
+        }}
+    </style>
+    """
     return HTML_BACKGROUND_IMG