div.tree-child{background:url(../image/tree.png) no-repeat 11px center}div.tree-child-last{background:url(../image/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(../image/tree.png) no-repeat -11px center}