.indentIcon {background-image: url('images/indentIcons.gif'); background-repeat: no-repeat; width: 16px; height: 16px; margin: 0; padding: 0;}.indentIcon.indentIconTerminal {background-position: -0px;}.indentIcon.indentIconCollapsed {background-position: -16px;}.indentIcon.indentIconExpanded {background-position: -32px;}