.claro .dijitTreeExpando {background-image: url('images/spriteExpandoArrowOpen.png'); background-repeat: no-repeat; width: 16px; height: 16px;}.claro .dijitTreeExpando {background-position: -0px 0;}.claro .dijitTreeExpandoOpened {background-position: -16px 0;}.claro .dijitTreeRowHover .dijitTreeExpandoOpened {background-position: -64px 0;}.claro .dijitTreeRowHover .dijitTreeExpandoClosed {background-position: -48px 0;}.claro .dijitTreeExpandoLeaf {background-position: -32px 0;}