Update app.py

app.py

@@ -459,6 +459,11 @@ with gr.Blocks(css=css, title="🎨 AI Image Upscaler - Florence-2 + FLUX") as d
             border-radius: 5px;
             z-index: 10;
         }
+        #result_slider .fullscreen img {
+            object-fit: contain !important;
+            width: 100vw !important;
+            height: 100vh !important;
+        }
     </style>
     """)