postmark.css

.navbar-default {
    background: #ffde00;
    border: none;
}

.navbar-default .navbar-brand {
    color: #333;
    font-weight: bold;
}

.menu {
    background: #333;
    color: #fcfcfc;
}

.menu ul.list li a {
    color: #333;
}

.menu ul.list li.title {
    background: #ffde00;
    color: #333;
    padding-bottom: 5px;
}

.menu ul.list li:nth-child(2) {
    margin-top: 0;
}

.menu ul.list li.chapter a,
.menu ul.list li.chapter .simple {
    color: white;
    text-decoration: none;
}

.menu ul.list li.chapter ul.links a {
    color: #949494;
    text-transform: none;
    padding-left: 35px;
}

.menu ul.list li.chapter ul.links a:hover,
.menu ul.list li.chapter ul.links a.active {
    color: #ffde00;
}

.menu ul.list li.chapter ul.links {
    padding-left: 0;
}

.menu ul.list li.divider {
    background: rgba(255, 255, 255, 0.07);
}

#book-search-input input,
#book-search-input input:focus,
#book-search-input input:hover {
    color: #949494;
}

.copyright {
    color: #b3b3b3;
    background: #272525;
}

.content {
    background: #fcfcfc;
}

.content a {
    color: #007dcc;
}

.content a:visited {
    color: #0165a5;
}

.menu ul.list li:nth-last-child(2) {
    background: none;
}

.list-group-item:first-child,
.list-group-item:last-child {
    border-radius: 0;
}

.menu ul.list li.title a {
    text-decoration: none;
    font-weight: bold;
}

.menu ul.list li.title a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.breadcrumb > li + li:before {
    content: '»\00a0';
}

.breadcrumb {
    padding-bottom: 15px;
    border-bottom: 1px solid #e1e4e5;
}

code {
    white-space: nowrap;
    max-width: 100%;
    background: #f5f5f5;
    padding: 2px 5px;
    color: #666666;
    overflow-x: auto;
    border-radius: 0;
}

pre {
    white-space: pre;
    margin: 0;
    padding: 12px 12px;
    font-size: 12px;
    line-height: 1.5;
    display: block;
    overflow: auto;
    color: #404040;
    background: #f3f3f3;
}

pre code.hljs {
    border: none;
    background: inherit;
}

/*
Atom One Light by Daniel Gamage
Original One Light Syntax theme from https://github.com/atom/one-light-syntax
base:    #fafafa
mono-1:  #383a42
mono-2:  #686b77
mono-3:  #a0a1a7
hue-1:   #0184bb
hue-2:   #4078f2
hue-3:   #a626a4
hue-4:   #50a14f
hue-5:   #e45649
hue-5-2: #c91243
hue-6:   #986801
hue-6-2: #c18401
*/

.hljs {
    display: block;
    overflow-x: auto;
    padding: 0.5em;
    color: #383a42;
    background: #fafafa;
}

.hljs-comment,
.hljs-quote {
    color: #a0a1a7;
    font-style: italic;
}

.hljs-doctag,
.hljs-keyword,
.hljs-formula {
    color: #a626a4;
}

.hljs-section,
.hljs-name,
.hljs-selector-tag,
.hljs-deletion,
.hljs-subst {
    color: #e45649;
}

.hljs-literal {
    color: #0184bb;
}

.hljs-string,
.hljs-regexp,
.hljs-addition,
.hljs-attribute,
.hljs-meta-string {
    color: #50a14f;
}

.hljs-built_in,
.hljs-class .hljs-title {
    color: #c18401;
}

.hljs-attr,
.hljs-variable,
.hljs-template-variable,
.hljs-type,
.hljs-selector-class,
.hljs-selector-attr,
.hljs-selector-pseudo,
.hljs-number {
    color: #986801;
}

.hljs-symbol,
.hljs-bullet,
.hljs-link,
.hljs-meta,
.hljs-selector-id,
.hljs-title {
    color: #4078f2;
}

.hljs-emphasis {
    font-style: italic;
}

.hljs-strong {
    font-weight: bold;
}

.hljs-link {
    text-decoration: underline;
}

@media (prefers-color-scheme: dark) {
    .content {
        background: none;
    }
    code {
        background: none;
        color: #e09393;
    }
    .menu ul.list li.chapter a.active {
        color: #ffde00;
    }
    .menu {
        background: #272525;
    }
}