kayo/source/css/_partial/_post/_code.scss

code, pre {
  padding: 7px;
  font-size: $code-font-size;
  font-family: $code-font-family;
  background: $code-background;
}

code {
  padding: 3px 5px;
  border-radius: 4px;
  color: $code-color;
}

.highlight {
  margin: 1em 0;
  border-radius: 5px;
  overflow-x: auto;
  box-shadow: 1px 1px 2px rgba(0,0,0,0.125);
  position: relative;

  table {
    position: relative;
    max-width: none;

    &::after {
      position: absolute;
      top: 0;
      right: 0;
      left: 0;
      padding: 2px 7px;
      font-size: $code-font-size;
      font-weight: bold;
      color: darken($gray, 10%);
      background: darken($code-background, 3%);
      content: 'Code';
    }
  }

  @each $sign, $text in $code-type-list {
    &.#{$sign} > table::after {
      content: $text;
    }

    &.#{$sign} > figcaption > span::after {
      content: ' · ' + $text;
    }

    &.#{$sign} figcaption + table {
      &::after {
        display: none;
      }
    }
  }

  figcaption {
    position: absolute;
    top: 0;
    width: 100%;
    padding: 2px 7px;
    font-size: $code-font-size;
    font-weight: bold;
    color: darken($gray, 10%);
    background: darken($code-background, 3%);
    z-index: 20;
    overflow-x: hidden;
    box-sizing: border-box;

    & > a {
      position: absolute;
      right: 0;
      display: inline-box;
      margin-right: 7px;
      font-weight: 400;

      &:hover {
        text-decoration: none;
        border: 0;
      }
    }
  }

  .code {
    pre {
      margin: 0;
      padding: 30px 10px 10px;
    }
  }

  .gutter {
    width: 10px;
    color: $gray;

    pre {
      margin: 0;
      padding: 30px 7px 10px;
    }
  }

  .line {
    // Fix code block null line height and
    // Synchronous gutter and code line highly.
    height: round($code-font-size * 1.5);
  }

  table, tr, td {
    margin: 0;
    padding: 0;
    width: 100%;
    border-collapse: collapse;
  }

  .code {
    .comment,
    .quote {
      color: map-get($code-highlight-color, comment);
    }

    .keyword,
    .selector-tag,
    .addition {
      color: map-get($code-highlight-color, keyword);
    }

    .number,
    .string,
    .meta .meta-string,
    .literal,
    .doctag,
    .regexp {
      color: map-get($code-highlight-color, number);
    }

    .title,
    .section,
    .name,
    .selector-id,
    .selector-class {
      color: map-get($code-highlight-color, title);
    }

    .attribute,
    .attr,
    .variable,
    .template-variable,
    .class .title,
    .type {
      color: map-get($code-highlight-color, attribute);
    }

    .symbol,
    .bullet,
    .subst,
    .meta,
    .meta .keyword,
    .selector-attr,
    .selector-pseudo,
    .link {
      color: map-get($code-highlight-color, symbol);
    }

    .built_in,
    .deletion {
      color: map-get($code-highlight-color, built_in);
    }
  }
}