.btn_mail p {
	width:121px;
	height:22px;
	margin:0px;
 	padding:3px 0px 8px;
	text-indent:-9999px;
}
.btn_mail p a {
	display:block;
	overflow:hidden;
	width:121px;
	height:22px;
	background: url(../image/index/btn_mail.gif) no-repeat;	
}
.btn_mail p a:hover {
	background: url(../image/index/btn_mail_ov.gif) no-repeat;	
}