body {
	background-color: #CCCCCC;
	font-size: 10px;
	text-align: center; 
}
a {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 11px;
	font-weight: bold;
	color: #000000;
	text-decoration: none;
}
td {
	padding: 0px;
}
.padding {
	padding-top: 10px;
	padding-bottom: 10px;
}
a:hover {
	color: #FFFFFF;
	text-decoration: underline;
}
#presentacion {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 600px;
    height: 650px;
    margin-top: -300px;
    margin-left: -300px;
    overflow: auto;
}
#pie_pagina
{
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 9px;
	font-weight: bold;
}