code highlight style

highlight.scss

// define variables
$code-bg:  #2e3e4e;
$tea:      #ecebe7;
$gray-200: #e9ecef;
$gray-500: #adb5bd;
$gray-800: #343a40;

$font-family-monospace: 'Ubuntu Mono', 'SFMono-Regular', 'Menlo', 'Monaco', 'Consolas', 'Liberation Mono', 'Courier New', 'Noto Serif SC', 'STSong', monospace;

figure.highlight,
pre.highlight {
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    overflow: auto;
    line-height: 1.4rem;
    position: relative;
}

.highlighter-rouge {
    font-weight: 300;
    position: relative;
}

p code.highlighter-rouge,
p kbd {
    color: #cc6666;
    font-size: 1rem;
    background-color: lighten($tea, 5%);
    padding: 2px 4px;
    border-radius: 2px;
    word-break: break-word;
}

kbd {
    border: 1px solid $gray-800;
    border-radius: 4px;
}

/* "data-lang" should be injected by JavaScript */
/*
figure.highlight::before,
div.highlighter-rouge::before {
    font-family: $font-family-monospace;
    content: attr(data-lang);
    font-size: .9rem;
    color: $gray-200;
    position: absolute;
    display: block;
    height: 1rem;
    right: .5rem;
    z-index: 5;
}

figure.highlight::before {
    margin-top: -1rem;
}
*/

.rouge-table .code pre {
    overflow: hidden;
}

.rouge-table .code pre {
    overflow: hidden;
}

table.rouge-table,
table.rouge-table tr,
table.rouge-table td,
table.rouge-table pre {
    border: 0;
    padding: 0;
    margin: 0;
}

table.rouge-table td.gutter {
    padding-right: .5rem;
    border-right: 1px solid $gray-500;
}

table.rouge-table td.code {
    padding-left: .5rem;
}

figure pre {
    margin-bottom: 0;
}

.lineno {
    text-align: right;
}

/* Base16 Tomorrow Dark by Chris Kempson; https://github.com/idleberg */
.highlight,
.highlight pre,
.highlight table {
    background: $code-bg;
    color: $gray-200;
    border-radius: 4px;
    font-size: 1rem;
}

.highlight .hll { background-color: #373b41 }
.highlight .c { color: #969896 } /* Comment */
.highlight .err { color: #cc6666 } /* Error */
.highlight .k { color: #b294bb } /* Keyword */
.highlight .l { color: #de935f } /* Literal */
.highlight .n, .highlight .h { color: #ffffff } /* Name */
.highlight .o { color: #8abeb7 } /* Operator */
.highlight .p { color: #ffffff } /* Punctuation */
.highlight .cm { color: #969896 } /* Comment.Multiline */
.highlight .cp { color: #969896 } /* Comment.Preproc */
.highlight .c1 { color: #969896 } /* Comment.Single */
.highlight .cs { color: #969896 } /* Comment.Special */
.highlight .gd { color: #cc6666 } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gh { color: #ffffff; font-weight: bold } /* Generic.Heading */
.highlight .gi { color: #b5bd68 } /* Generic.Inserted */
.highlight .gp { color: #969896; font-weight: bold } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #8abeb7; font-weight: bold } /* Generic.Subheading */
.highlight .kc { color: #b294bb } /* Keyword.Constant */
.highlight .kd { color: #b294bb } /* Keyword.Declaration */
.highlight .kn { color: #8abeb7 } /* Keyword.Namespace */
.highlight .kp { color: #b294bb } /* Keyword.Pseudo */
.highlight .kr { color: #b294bb } /* Keyword.Reserved */
.highlight .kt { color: #f0c674 } /* Keyword.Type */
.highlight .ld { color: #b5bd68 } /* Literal.Date */
.highlight .m { color: #de935f } /* Literal.Number */
.highlight .s { color: #b5bd68 } /* Literal.String */
.highlight .na { color: #81a2be } /* Name.Attribute */
.highlight .nb { color: #ffffff } /* Name.Builtin */
.highlight .nc { color: #f0c674 } /* Name.Class */
.highlight .no { color: #cc6666 } /* Name.Constant */
.highlight .nd { color: #8abeb7 } /* Name.Decorator */
.highlight .ni { color: #ffffff } /* Name.Entity */
.highlight .ne { color: #cc6666 } /* Name.Exception */
.highlight .nf { color: #81a2be } /* Name.Function */
.highlight .nl { color: #ffffff } /* Name.Label */
.highlight .nn { color: #f0c674 } /* Name.Namespace */
.highlight .nx { color: #81a2be } /* Name.Other */
.highlight .py { color: #ffffff } /* Name.Property */
.highlight .nt { color: #8abeb7 } /* Name.Tag */
.highlight .nv { color: #cc6666 } /* Name.Variable */
.highlight .ow { color: #8abeb7 } /* Operator.Word */
.highlight .w { color: #ffffff } /* Text.Whitespace */
.highlight .mf { color: #de935f } /* Literal.Number.Float */
.highlight .mh { color: #de935f } /* Literal.Number.Hex */
.highlight .mi { color: #de935f } /* Literal.Number.Integer */
.highlight .mo { color: #de935f } /* Literal.Number.Oct */
.highlight .sb { color: #b5bd68 } /* Literal.String.Backtick */
.highlight .sc { color: #ffffff } /* Literal.String.Char */
.highlight .sd { color: #969896 } /* Literal.String.Doc */
.highlight .s2 { color: #b5bd68 } /* Literal.String.Double */
.highlight .se { color: #de935f } /* Literal.String.Escape */
.highlight .sh { color: #b5bd68 } /* Literal.String.Heredoc */
.highlight .si { color: #de935f } /* Literal.String.Interpol */
.highlight .sx { color: #b5bd68 } /* Literal.String.Other */
.highlight .sr { color: #b5bd68 } /* Literal.String.Regex */
.highlight .s1 { color: #b5bd68 } /* Literal.String.Single */
.highlight .ss { color: #b5bd68 } /* Literal.String.Symbol */
.highlight .bp { color: #ffffff } /* Name.Builtin.Pseudo */
.highlight .vc { color: #cc6666 } /* Name.Variable.Class */
.highlight .vg { color: #cc6666 } /* Name.Variable.Global */
.highlight .vi { color: #cc6666 } /* Name.Variable.Instance */
.highlight .il { color: #de935f } /* Literal.Number.Integer.Long */

I've substituted them with actual values (there are a few vars missing), but for a casual copy&paste user coming by it'll be useful, thanks!