- -moz-margin-start: 2px;
- -moz-margin-end: 2px;
- background-image: url("chrome://global/skin/tree/twisty-open-selected.gif");
+ margin-inline-start: 2px;
+ margin-inline-end: 2px;
+ background-image: url("chrome://global/skin/tree/twisty.svg#open-hover");