Update app.py

app.py

@@ -23,7 +23,7 @@ demo = gr.Interface(
         body {
             background-color: #f2f2f2 !important;
         }
-        .input_text, .output_text {
+        gr.Textbox {
             color: #4b4b4b !important;
             background-color: #e8e8e8 !important;
             font-family: 'Arial' !important, sans-serif !important;