/* Tutorial pages are rendered from the notebooks (docs/build_tutorials.py). Their
   matplotlib figures have a white background: keep them on a white card, so they
   read the same in the dark (slate) scheme, and centre them. */
.md-typeset img[alt^="Figure"] {
  display: block;
  margin: 0.8em auto;
  max-width: 100%;
  background: #fff;
  border-radius: 0.2rem;
  padding: 0.4rem;
  box-shadow: var(--md-shadow-z1);
}