body {
	color: #000;
	font-family: "Trebuchet MS", "Lucida Grande", Arial, Helvetica, sans-serif;
	margin: 0 auto;
	padding: 0;
	font-size: 10px;
}
hr {
  	height:0;
  	border:0;
	border-top: 1px solid  #1f5D36;
}

.img_menu:link, .img_menu:visited {
	opacity: 0.5;
} 
.img_menu:hover, .img_menu:active {
	opacity: 1.0;
}

contenido { 
	text-align: center; 
}

footer { 
	position:absolute; 
	bottom:0; 
	width:100%; 
	margin:0; 
	text-align:center; 
}

br {
	clear: left;
}

label,input {
	display: block;
	width: 150px;
	float: left;
	margin-bottom: 10px;
}

label { 
	font-weight: bold;
	color: #040;
	text-align: right;
	height: 12px;
	margin-top: 4px;
	padding-right: 20px;
}