Update app.py

app.py

@@ -263,26 +263,38 @@ theme = gr.themes.Soft(
 )
 
 css = """
+    body > gradio-app {
+        background: var(--primary-950);
+        background: linear-gradient(180deg, color-mix(in srgb, var(--primary-950), transparent 50%) 0%, color-mix(in srgb, var(--primary-950), transparent 50%) 28%, var(--neutral-950) 28%, var(--neutral-950) 100%) !important;
+        padding-top: 120px;
+    }
+    
     div.tabs > div.tab-nav > button.selected {
         border-width: 0 !important;
         background: var(--primary-600) !important;
-        color: var(--body-text-color);
+        color: var(--neutral-950);
+        font-weight: 600;
     }
     
     div.tabs > div.tab-nav {
-            border-bottom: 8px solid var(--primary-600) !important;
+        border-bottom: none; !important;
+        padding: 0 0.25rem 0 0.25rem !important;
     }
     
     div.tabs div.tabitem {
-        display: flex;
-        position: relative;
-        border: none !important;
         background-color: var(--neutral-900) !important;
+        border-top: 8px solid var(--primary-600) !important;
+        border-radius: var(--container-radius) !important;
+    }
+    
+    .top-description h1 {
+        color: var(--neutral-400);
+        font-size: 2rem;
     }
     """
 
 with gr.Blocks(theme=theme, css=css) as demo:
-    gr.Markdown(DESCRIPTION)
+    gr.Markdown(DESCRIPTION, elem_classes="top-description")
     with gr.Tab("Canny Edge"):
         with gr.Row():
             gr.Markdown("## Canny Edge")