.lo_970 {width:970px;clear:both;position:relative;}
.lo_250_left {width:250px;float:left;position:relative;}
.lo_720_left {width:720px;float:left;position:relative;}
.lo_720 {width:720px;clear:both;position:relative;}
.lo_360_left {width:360px;float:left;position:relative;}
.lo_700_center {width:700px;margin:0 auto;clear:both;position:relative;}
.lo_600_center {width:600px;margin:0 auto;clear:both;position:relative;}
.lo_370_center {width:370px;margin:0 auto;clear:both;position:relative;}
.lo_620_left {width:620px;float:left;position:relative;}
.lo_350_left {width:350px;float:left;position:relative;}