.block_code pre code {
  font-family: "DejaVu Sans Mono", "Fira Code", Monaco, Consolas, monospace;
  white-space: pre-wrap;
}

pre {
  max-height: 20em;
}

div.code-toolbar > .toolbar {
  top: 1em !important;
  right: 2em !important;
}

div.code-toolbar > .toolbar button:hover {
  cursor: pointer;
  color: orange !important;
}