*
{
	box-sizing: border-box;
}

body
{
	margin: 0px 0px;
	font-family: 'Raleway', sans-serif;
    background-image: url(images/matrix_anim.gif);
    background-repeat: repeat;    
    background-attachment: fixed;
}

.alto
{
	height: 100px;
}

.alto_titulo
{
	height: 40px;
}

.contenedor
{
	width: 100%;
	margin: 0 auto;
}

#li_activo
{
	background-color: #0080ff;	
}

.enlaces_de_la_cabecera
{
	text-decoration: none;
	color: white;
	padding: 32px 32px;
	display: block;			
}

.enlaces_de_la_cabecera:hover
{
	background-color: #0080ff;
	color: white;
	text-decoration: none;	
}

#menu_de_la_cabecera
{
	text-decoration: none;
	list-style: none;
	display: flex;
	padding: 0;
	margin: 0;
	justify-content: space-around;	
}

nav
{	
	font-size: 14px;
	padding: 0px 0px;
	background-color: #0000ff;	
}

.blanco
{
	color: white;
}

@media only screen and (min-width: 0px) and (max-width: 1000px)
{
	#menu_de_la_cabecera
	{
		display: block;		
	}
}

.center
{
	text-align: center;
}

.enlace
{
	text-decoration: none;
	color: black;
}

.enlace:hover
{
	text-decoration: none;
	color: black;
}