Emojis without background color

less/qfq-bs.css.less

@@ -198,7 +198,7 @@ i.@{spinner_class} {
 .emoji {
   display: inline-block;
   border: none;
-  background-color: #fff;
+  /*background-color: #fff;*/
   width: 32px;
   height: 32px;
   margin: 5px;