.md-typeset img.portal-wide {
  display: block;
  width: 38rem;
  max-width: 95vw;
  margin-left: 50%;
  transform: translateX(-50%);
}

.md-typeset img.native {
  display: block;
  width: auto;
  max-width: 95vw;
  margin-left: 50%;
  transform: translateX(-50%);
}