update css

app.py

@@ -60,20 +60,22 @@ def view_model(selected_models):
     return netron_html if netron_html else "<p>No valid models selected for visualization.</p>"
 
 custom_css = """
-#run_button {
+.custom-button {
     background-color: purple !important;
     color: white !important;
     width: 120px !important;
     border-radius: 5px !important;
     font-size: 14px !important;
 }
-#custom-row {
+
+.custom-row {
     margin: 0 !important;
     padding: 0 !important;
     height: fit-content !important;
     display: flex !important;
     justify-content: center !important;
 }
+
 #highlighted-text {
     color: blue !important;
     font-size: 32px !important;
@@ -84,11 +86,13 @@ custom_css = """
 # Then in the Gradio interface:
 
 with gr.Blocks(css=custom_css) as interface:
-    gr.Markdown("""
-        ## NeuralVista
-        <p>Welcome to <span id="highlighted-text">NeuralVista</span>, a powerful tool designed to help you visualize object detection models in action.</p>
-        <p id="custom-row">With the integration of state-of-the-art YOLO models, you can explore the performance of object detection algorithms on various images.</p>
-        """)
+    gr.HTML("""
+        <div id="custom-row">
+            <p>Welcome to <span id="highlighted-text">NeuralVista</span>, a powerful tool designed to help you visualize object detection models in action.</p>
+            <p>With the integration of state-of-the-art YOLO models, you can explore the performance of object detection algorithms on various images.</p>
+        </div>
+    """)
+
     
     
     # Default sample