.nihilo .dijitTreeNode {background : url('images/treeI.gif') no-repeat; background-position : top left; background-repeat : repeat-y; margin-left: 19px; zoom: 1;}.nihilo .dijitTreeIsLast {background: url('images/treeI_half.gif') no-repeat;}.nihilo .dijitTreeLabel {font-weight: normal; margin-left: 3px;}.nihilo .dijitTreeIsRoot {margin-left: 0; background-image: none;}.nihilo .dijitTreeExpando {width: 18px; height: 18px;}.nihilo .dijitTreeContent {min-height: 18px; min-width: 18px; margin-left:18px; padding-top:3px; padding-left:1px;}.nihilo .dijitTreeExpand {width: 18px; height: 18px; background-repeat : no-repeat;}.nihilo .dijitTreeNodeEmphasized {background-color: Highlight; color: HighlightText;}.nihilo .dijitTreeLabelFocused {outline: 1px invert dotted; background:#dde7f2;}.nihilo .dijitTreeExpandoOpened {background: url('images/spriteTree.gif') no-repeat -18px top;}.nihilo .dijitTreeExpandoClosed {background-image: url('images/spriteTree.gif');}.nihilo .dijitTreeExpandoLeaf {background: url('images/spriteTree.gif') no-repeat -36px top;}.nihilo .dijitTreeExpandoLoading {background-image: url('images/treeExpand_loading.gif');}.nihilo .dijitTreeIcon {width: 16px; height: 16px;}.nihilo .dijitFolderOpened {background: url('images/spriteDivIcons.gif') no-repeat -16px top;}.nihilo .dijitFolderClosed {background: url('images/spriteDivIcons.gif') no-repeat top left;}.nihilo .dijitLeaf {background: url('images/spriteDivIcons.gif') no-repeat -32px top;}