html { background-image:url(../images/dzzz.jpg); background-position:center top; background-repeat:no-repeat;}
.lb_tit3 { float:left; width:100%; overflow:hidden; font-size:26px; font-weight:bold; text-align:center}
#cen_nr_dzzz { width:1000px; margin:0 auto; overflow:hidden; clear:both; margin-bottom:70px; margin-top:20px;}