.fondo_home {
	background-image: url(../images/fondo_home.jpg);
	background-repeat: no-repeat;
}
.encabezado_int {
	background-image: url(../images/encabezado_int.jpg);
	background-repeat: no-repeat;
}
.fondo_int {
	background-image: url(../images/fondo_int.jpg);
}
.pie_int {
	background-image: url(../images/pie_int.jpg);
	background-repeat: no-repeat;
}