tl-dr/print.css

/* This defines styles and classes used in the book */
@page {
  margin: 10px;
}
html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video,
ol,
ul,
li,
dl,
dt,
dd {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  vertical-align: baseline;
}
html {
  line-height: 1.2;
  font-family: Georgia, serif;
  color: #1a1a1a;
  background-color: #fdfdfd;
}
p {
  text-indent: 0;
  margin: 1em 0;
  widows: 2;
  orphans: 2;
}
a,
a:visited {
  color: #1a1a1a;
}
img {
  max-width: 100%;
}
sup {
  vertical-align: super;
  font-size: smaller;
}
sub {
  vertical-align: sub;
  font-size: smaller;
}
h1 {
  margin: 3em 0 0 0;
  font-size: 2em;
  page-break-before: always;
  line-height: 150%;
}
h2 {
  margin: 1.5em 0 0 0;
  font-size: 1.5em;
  line-height: 135%;
}
h3 {
  margin: 1.3em 0 0 0;
  font-size: 1.3em;
}
h4 {
  margin: 1.2em 0 0 0;
  font-size: 1.2em;
}
h5 {
  margin: 1.1em 0 0 0;
  font-size: 1.1em;
}
h6 {
  font-size: 1em;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  text-indent: 0;
  text-align: left;
  font-weight: bold;
  page-break-after: avoid;
  page-break-inside: avoid;
}

ol,
ul {
  margin: 1em 0 0 1.7em;
}
li > ol,
li > ul {
  margin-top: 0;
}
blockquote {
  margin: 1em 0 1em 1.7em;
}
code {
  font-family: Menlo, Monaco, "Lucida Console", Consolas, monospace;
  font-size: 85%;
  margin: 0;
  hyphens: manual;
}
pre {
  margin: 1em 0;
  overflow: auto;
}
pre code {
  padding: 0;
  overflow: visible;
  overflow-wrap: normal;
}
.sourceCode {
  background-color: transparent;
  overflow: visible;
}
hr {
  background-color: #1a1a1a;
  border: none;
  height: 1px;
  margin: 1em 0;
}
table {
  margin: 1em 0;
  border-collapse: collapse;
  width: 100%;
  overflow-x: auto;
  display: block;
}
table caption {
  margin-bottom: 0.75em;
}
tbody {
  margin-top: 0.5em;
  border-top: 1px solid #1a1a1a;
  border-bottom: 1px solid #1a1a1a;
}
th,
td {
  padding: 0.25em 0.5em 0.25em 0.5em;
}
th {
  border-top: 1px solid #1a1a1a;
}
header {
  margin-bottom: 4em;
  text-align: center;
}
#TOC li {
  list-style: none;
}
#TOC ul {
  padding-left: 1.3em;
}
#TOC > ul {
  padding-left: 0;
}
#TOC a:not(:hover) {
  text-decoration: none;
}
code {
  white-space: pre-wrap;
}
span.smallcaps {
  font-variant: small-caps;
}

/* This is the most compatible CSS, but it only allows two columns: */
div.column {
  display: inline-block;
  vertical-align: top;
  width: 50%;
}
/* If you can rely on CSS3 support, use this instead: */
/* div.columns {
  display: flex;
  gap: min(4vw, 1.5em);
}
div.column {
  flex: auto;
  overflow-x: auto;
} */

div.hanging-indent {
  margin-left: 1.5em;
  text-indent: -1.5em;
}
ul.task-list {
  list-style: none;
}
ul.task-list li input[type="checkbox"] {
  width: 0.8em;
  margin: 0 0.8em 0.2em -1.6em;
  vertical-align: middle;
}
.display.math {
  display: block;
  text-align: center;
  margin: 0.5rem auto;
}

/* For title, author, and date on the cover page */
h1.title {
}
p.author {
}
p.date {
}

nav#toc ol,
nav#landmarks ol {
  padding: 0;
  margin-left: 1em;
}
nav#toc ol li,
nav#landmarks ol li {
  list-style-type: none;
  margin: 0;
  padding: 0;
}
a.footnote-ref {
  vertical-align: super;
}
em,
em em em,
em em em em em {
  font-style: italic;
}
em em,
em em em em {
  font-style: normal;
}
q {
  quotes: "“" "”" "‘" "’";
}
@media screen {
  /* Workaround for iBooks issue; see #6242 */
  .sourceCode {
    overflow: visible !important;
    white-space: pre-wrap !important;
  }
}

@font-face {
  font-family: DuctusRegular;
  font-style: normal;
  font-weight: normal;
  src: url("../fonts/DuctusRegular.otf");
}
@font-face {
  font-family: "CascadiaCode VTT";
  font-weight: normal;
  src: url("../fonts/CascadiaCode-Light.ttf");
}

@font-face {
  font-family: "CascadiaCode VTT";
  font-weight: bold;
  src: url("../fonts/CascadiaCode-Bold.ttf");
}

body {
  font-family: "CascadiaCode VTT";
}

article {
  margin: 2em 2em;
  page-break-after: always;
  text-align: left;
  text-justify: none;
}

ul {
  list-style-type: none;
  padding: 0 0;
  margin-bottom: 1em;
}

dfn,
samp,
dd {
  text-align: center;
}

mark {
  background: yellow;
  display: block;
  padding: 0.5em;
  font-family: "DuctusRegular";
  margin-bottom: 1em;
  margin-right: 1em;
  white-space: normal;
  text-align: left;
  text-justify: none;
  font-size: 1em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "DuctusRegular";
  text-align: left;
  text-justify: none;
  font-size: 1.5em;
}
p {
  margin-bottom: 1em;
  font-family: "CascadiaCode VTT";
  font-size: 1em;
  text-align: left;
  text-justify: none;
}