.menu_top a span {
   display:block;
   background-position:bottom;
}
a#index {
	display:block;
	width:87px;
	height:12px;
	background:url(../images/botones_menu/mundolamin_btn.png);
	background-position:bottom;
}
a#index:hover {
	background-position:top;
}
a#tienda {
	display:block;
	width:48px;
	height:12px;
	background:url(../images/botones_menu/tienda_btn.png);
	background-position:bottom;
}
a#tienda:hover {
	background-position:top;
}
a#pastelerias {
	display:block;
	width:147px;
	height:12px;
	background:url(../images/botones_menu/pastelerias_asociadas_btn.png);
	background-position:bottom;
}
a#pastelerias:hover {
	background-position:top;
}
a#prensa {
	display:block;
	width:46px;
	height:12px;
	background:url(../images/botones_menu/prensa.png);
	background-position:bottom;
}
a#prensa:hover {
	background-position:top;
}
a#colabora {
	display:block;
	width:155px;
	height:12px;
	background:url(../images/botones_menu/colabora_nos_btn.png);
	background-position:bottom;
}
a#colabora:hover {
	background-position:top;
}
a#contacto {
	display:block;
	width:62px;
	height:12px;
	background:url(../images/botones_menu/contacto_btn.png);
	background-position:bottom;
}
a#contacto:hover {
	background-position:top;
}z