/* botao 1 */
#seu_botao {
	clear: both;
	position:relative;
	display:block;
	height: 64px;
	width: 570px;
	background:url(images/botao.png) no-repeat;
	background-position:0 0;
	cursor: pointer;
}	
#seu_botao span.hover {
	position: absolute;
	display: block;
	height: 64px;
	width: 570px;
	background: url(images/botao.png) no-repeat;
	background-position: bottom;
}

/* botao 2 */
#outro_botao {
	clear: both;
	position:relative;
	display:block;
	height: 64px;
	width: 570px;
	background:url(images/outro.png) no-repeat;
	background-position:0 0;
	cursor: pointer;
}	
#outro_botao span.hover {
	position: absolute;
	display: block;
	height: 64px;
	width: 570px;
	background: url(images/outro.png) no-repeat;
	background-position: bottom;
}