#ed-inicio .ed-inicio-banner img{
  -webkit-mask-image:linear-gradient(to right,transparent,#000 5%,#000 95%,transparent),linear-gradient(to bottom,transparent,#000 12%,#000 88%,transparent);
  mask-image:linear-gradient(to right,transparent,#000 5%,#000 95%,transparent),linear-gradient(to bottom,transparent,#000 12%,#000 88%,transparent);
  -webkit-mask-composite:source-in;
  mask-composite:intersect;
}