.bb a {
	padding:0px;
	text-decoration: none;
	text-align: left ;
	color:#6F3700; 
	background: url(botoes/prod_1.jpg);
	width:200px;
	height:20px;
	display:block;
	font-family:Verdana, Arial, Helvetica, sans-serif; 
	font-size: 12px;
	line-height: 20px;
	font-weight: bold;
} 
.bb a:hover {
	padding:0px;
	text-decoration: none;
	text-align:left;
	color:#6F3700; 
	background: url(botoes/prod_2.jpg) ;
	width:200px;
	height:20px;
	display:block;
	font-family:Verdana, Arial, Helvetica, sans-serif; 
	font-size: 12px;
	line-height: 20px;
	font-weight: bold;