.daohang a#coupon{background-image:url(../images/global/daohangbg_current.gif);text-decoration:none;background-repeat:no-repeat;text-align:center;color:#fff;font-weight:bold}.blue .daohang a#coupon{background-position:center 0}.green .daohang a#coupon{background-position:center -40px}.orange .daohang a#coupon{background-position:center -80px}