Update app.py

app.py

@@ -96,6 +96,18 @@ CSS = """
   min-width:120px !important;
   flex:0 0 auto !important;
 }
+/* Textbox: remove the extra OUTER border line, keep the textarea border */
+#input_box,
+#input_box > div,
+#input_box .gr-block,
+#input_box .gr-box,
+#input_box .gr-panel,
+#input_box .wrap,
+#input_box .container{
+  border: 0 !important;
+  box-shadow: none !important;
+  background: transparent !important;
+}
 """
 
 # ----------------------------