.img_left {
   float:left;
   width:7px;
   height:22px;
   background: url(../image/left_category.gif) no-repeat;
   overflow:hidden;
}

.img_center {
   float:left;
   width:120px;
   height:22px;
   background: url(../image/center_category.gif) repeat-x ;
   overflow:hidden;
   text-align:left;
   vertical-align:middle;
   line-height:22px;
   font-weight: bold;
   color:#000000;
}

.img_right {
   float:left;
   width:7px;
   height:22px;
   background: url(../image/right_category.gif) no-repeat  ;
   overflow:hidden;
}