.pre-wrapper {
  position: relative;
}

pre {
  margin: 5px 0;
  padding: 1.75rem 0 1.75rem 1rem;
}

.pre-wrapper > button {
  position: absolute;
  top: 0;
  right: 0;
  padding: 0.4rem 0.6rem;
  z-index: 1;
  background: var(--bulma-pre-background);
  border: none;
  cursor: pointer;
  transition: background-color 0.15s;
}

.pre-wrapper > button:hover {
  background-color: var(--bulma-background-active);
}