+ -moz-transform: scaleY(-1);
+ margin-top: -5px;
+}
+
+.panel-arrow[side="left"],
+.panel-arrow[side="right"] {
+ list-style-image: url("chrome://global/skin/arrow/panelarrow-horizontal.svg");
+ position: relative;
+ margin-top: 10px;
+ margin-bottom: 10px;