vuepress-theme-system/styles/system/code.css

a vuepress theme

pre code {
  display: block;
}

code {
  background-color: var(--color-alt);
  padding: var(--unit-xs) var(--unit-s);
  border-radius: var(--unit-xs);
  white-space: pre;
  hyphens: none;
  word-wrap: break-word;
}