.tundra .cbtreeCheckBox {background-image: url('images/spriteCheckbox.gif'); background-repeat: no-repeat; width: 16px; height: 16px; margin: 0; padding: 0;}.tundra .cbtreeCheckBox {background-position: -16px;}.tundra .cbtreeCheckBoxChecked {background-position: 0px;}.tundra .cbtreeCheckBoxMixed {background-position: -32px;}.tundra .cbtreeCheckBoxDisabled {background-position: -64px;}.tundra .cbtreeCheckBoxCheckedDisabled {background-position: -48px;}.tundra .cbtreeCheckBoxMixedDisabled {background-position: -80px;}.tundra .cbtreeCheckBoxReadOnly {background-position: -64px;}.tundra .cbtreeCheckBoxCheckedReadOnly {background-position: -48px;}.tundra .cbtreeCheckBoxMixedReadOnly {background-position: -80px;}.tundra .cbtreeCheckBoxHover {background-position: -112px;}.tundra .cbtreeCheckBoxCheckedHover {background-position: -96px;}.tundra .cbtreeCheckBoxMixedHover {background-position: -128px;}