hugo-theme-next/assets/css/_common/scaffolding/highlight/index.scss

@import 'copy-code';
@import 'monokai';

%code-inline {
  background: var(--highlight-background);
  color: var(--highlight-foreground);
}

pre {
  padding: 18px;
  margin: 0;
} 

p > code, li > code {
  @extend %code-inline;
  border-radius: 3px;
  padding: 3px 6px;
}

pre, code {
  font-family: $code-font-family;
}


kbd {
  @extend %code-inline;
  border: 2px solid $grey-light;
  border-radius: .2em;
  box-shadow: .1em .1em .2em rgba(0, 0, 0, .1);
  font-family: inherit;
  padding: .1em .3em;
  white-space: nowrap;
}