.portrait-art {
  background: #000;
  min-height: 0;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.portrait-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.portrait-art::before,
.portrait-art::after { display: none; }