Fix CSS styling issue

- Fixed CSS for better image container styling
- Resolved max-height property issue

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -739,15 +739,7 @@ css = """
     justify-content: center !important;
     align-items: center !important;
     min-height: 400px !important;
-    max-height: 500px !important;
-}
-.image-container img {
-    max-width: 100% !important;
-    max-height: 500px !important;
-    width: auto !important;
-    height: auto !important;
-    object-fit: contain !important;
-    object-position: center !important;
+    max-height: !important;
 }
 """