add: no border

utils.py

@@ -149,6 +149,11 @@ a {
 .bubble-wrap {
     padding-top: 0px !important;
 }
+.message {
+    border-style: none !important;
+    border-width: 0px !important;
+    border: 0px !important;
+}
 .message-content {
     border: 0px !important;
     margin: 5px !important;