/ * LABELS OFFERS - Add Image * /
#main-content span.onsale {
  background-image: url("http://vegan-tattoo.com/wp-content/uploads/black-price-oferta.png") !important;
  background-color: transparent !important;
}
/ * LABELS OFFERS - Delete default text * /
#main-content span.onsale {
  width: 59px;
  height: 59px !important;
  color: transparent !important;
}