Update mailcow.css

data/web/css/mailcow.css

@@ -43,4 +43,10 @@
         transform: rotate(359deg);
     }
 }
-pre{white-space:pre-wrap;white-space:-moz-pre-wrap;white-space:-pre-wrap;white-space:-o-pre-wrap;word-wrap:break-word;}
+pre{white-space:pre-wrap;white-space:-moz-pre-wrap;white-space:-pre-wrap;white-space:-o-pre-wrap;word-wrap:break-word;}
+.footable-sortable {
+	 -webkit-user-select: none;  
+  -moz-user-select: none;    
+  -ms-user-select: none;      
+  user-select: none;
+}