.zr {
	background-image: url(imagenes/zrepit.jpg);
	background-repeat: repeat-y;
}
.drep {
	background-image: url(imagenes/drepit.jpg);
	background-repeat: repeat-y;
}
.fontxt {
	background-image: url(imagenes/fondotxt.jpg);
	background-repeat: no-repeat;
}