.dijitRtl .nihilo .dijitTreeNode,.dijitRtl .nihilo .dijitTreeExpandoLeaf {background-image: none;}.dijitRtl .nihilo .dijitTreeContent {padding-left: 0; padding-right: 1px;}.dijitRtl .nihilo .dijitTreeExpandoOpened {background: url('images/spriteTree_rtl.gif') no-repeat -18px top;}.dijitRtl .nihilo .dijitTreeExpandoClosed {background-image: url('images/spriteTree_rtl.gif');}