body  {
	font: 100% Verdana, Arial, Helvetica, sans-serif;
	background: #e6efd0;
	margin: 0; 
	padding: 0;
	text-align: center; 
	color: #000000;
}
.tres_colunas #conteudo { 
	width: 800px;  
	background: #FFFFFF;
	margin: 0 auto; 
	border-right: 2px solid #8cc63e;
	border-left: 2px solid #8cc63e;
	text-align: left; 
} 
.tres_colunas #cabecalho { 
	background: #FFFFFF; 
	padding: 0px;  
} 

.tres_colunas #esquerda {
	float: left; 
	width: 150px; 
	background: #FFFFFF; 
	padding: 15px 10px 15px 1px; 
}

.tres_colunas #principal { 
	margin-left: 180px;
	margin-right: 5px; 
	padding: 20 10px; 
	
} 
.tres_colunas #footer { 
	padding: 0 10px 0 20px; 
	background:#DDDDDD;
} 
.tres_colunas #footer p {
	margin: 0; 
	padding: 10px 0; 
}
.fltrt { 
	float: right;
	margin-left: 8px;
}
.fltlft { 
	float: left;
	margin-right: 8px;
}
.clearfloat { 
	clear:both;
    height:0;
    font-size: 1px;
    line-height: 0px;
}