.light_bulb-off {
width: 64px;
height: 45px;
background: url(../images/bulb-off-block.png) no-repeat left top;
}
.light_bulb-on {
width: 64px;
height: 45px;
background: url(../images/bulb-on-block.png) no-repeat left top;
}
.not_power_line {
width: 250px;
height: 83px;
background: url(../images/not-power-line.png) no-repeat left top;
}
.power_line {
width: 152px;
height: 45px;
background: url(../images/power-line.png) no-repeat left top;
}
.power_line_or {
width: 152px;
height: 96px;
background: url(../images/power-line-or.png) no-repeat left top;
}
.power_line_nor {
width: 261px;
height: 107px;
background: url(../images/power-line-nor.png) no-repeat left top;
}
.power_line_norr {
width: 261px;
height: 107px;
background: url(../images/power-line-norr.png) no-repeat left top;
}
.power_line_and {
width: 250px;
height: 45px;
background: url(../images/power-line-and.png) no-repeat left top;
}
.power_line_nand {
width: 348px;
height: 83px;
background: url(../images/power-line-nand.png) no-repeat left top;
}
.power_line_nandr {
width: 348px;
height: 83px;
background: url(../images/power-line-nandr.png) no-repeat left top;
}
.power_line_andor {
width: 261px;
height: 96px;
background: url(../images/power-line-andor.png) no-repeat left top;
}
.power_line_orand {
width: 261px;
height: 96px;
background: url(../images/power-line-orand.png) no-repeat left top;
}
.power_core {
width: 63px;
height: 45px;
background: url(../images/power-core.png) no-repeat left top;
}
.power_core_off {
width: 63px;
height: 45px;
background: url(../images/power-core-off.png) no-repeat left top;
}
.power_core_inline {
width: 61px;
height: 36px;
background: url(../images/power-core-inline.png) no-repeat left top;
}
.power_core_off_inline {
width: 61px;
height: 36px;
background: url(../images/power-core-off-inline.png) no-repeat left top;
}
.true_false {
width: 61px;
height: 36px;
background: url(../images/true-false.png) no-repeat left top;
}
.not_true_false,
.inverter_true_false {
width: 61px;
height: 36px;
background: url(../images/not-true-false.png) no-repeat left top;
}
.true_value {
width: 28px;
height: 28px;
background: url(../images/true.png) no-repeat left top;
}
.false_value {
width: 28px;
height: 28px;
background: url(../images/false.png) no-repeat left top;
}
.itf_value {
width: 28px;
height: 28px;
background: url(../images/itf.png) no-repeat left top;
}
.switch_text {
padding-top: 3px;
text-align:center;
color: #000;
width: 28px;
height: 28px;
}
.light_bulb-on ,
.light_bulb-off,
.power_line,
.not_power_line,
.power_line_or,
.power_line_nor,
.power_line_and,
.power_line_nand,
.power_line_andor,
.power_line_orand,
.true_false,
.not_true_false,
.inverter_true_false,
.true_value,
.false_value,
.itf_value,
.switch_text,
.power_core,
.power_core_off,
.power_core_inline,
.power_core_off_inline  {
position: absolute;
}