.botao{
	font-size:12px;
	height:16px;
	width:14px;
	color:#FFFFFF;
	background:#222;
	border:0;
	position:relative;
	left:2px;
	text-align:center;
	line-height:18px;
	font-weight:bold;
	cursor:pointer;
	display:block;
}
#um{
	top:2px;
}
#dois{
	top:5px;
}
#tres{
	top:8px;
}