div.tree-child {
  background: url(/core/themes/stable/css/system/components/../../../images/core/tree.png)
    no-repeat 11px center;
}
div.tree-child-last {
  background: url(/core/themes/stable/css/system/components/../../../images/core/tree-bottom.png)
    no-repeat 11px center;
}
[dir="rtl"] div.tree-child,
[dir="rtl"] div.tree-child-last {
  background-position: -65px center;
}
div.tree-child-horizontal {
  background: url(/core/themes/stable/css/system/components/../../../images/core/tree.png)
    no-repeat -11px center;
}