.tabela {
	border-bottom-width: 1px;
	border-bottom-style: dotted;
	border-bottom-color: #CCCCCC;
}
.tabela2 {
	border-bottom-width: medium;
	border-bottom-style: solid;
	border-bottom-color: #CCCCCC;
}
.tabela_centro {
	border-bottom-style: dashed;
	border-bottom-color: #999999;
	border-bottom-width: 1px;
}
.bordas_preto {
	border: 1px solid #000000;
}