body,
pre {
  text-align: center;
  font-family: Arial;
  font-size: 16px;
}
pre {
  max-width: 500px;
  padding: 16px;
  margin: 50px auto 0;
  border-radius: 5px;
  border: 1px solid #ccc;
  background-color: #efefef;
  overflow: auto;
}
pre ::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
pre ::-webkit-scrollbar-corner {
  background-color: transparent;
}
pre ::-webkit-scrollbar-thumb {
  background-color: var(--vp-c-divider);
  border-radius: 4px;
}
pre ::-webkit-scrollbar-track {
  background-color: transparent;
}
input {
  padding: 3px;
  height: 24px;
  font-size: 16px;
  vertical-align: middle;
}