simple-readability.css

/* dark mode, and a little bit of meyer reset */
* {
  background-color: #363839 !important;
  color: #d1cec9 !important;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}

body {
  line-height: 1.1;
  max-width: 85%;
  margin: 3em;
  font-size: 150%;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
  color: #d1cec9;
}

p {
  line-height: 1.35;
}

/* https://alistapart.com/article/axiomatic-css-and-lobotomized-owls/ */
* + * {
  margin-top: 1.2em;
}

/* Heading Hierarchy */
h1 {
  font-size: 60px;
}
h2 {
  font-size: 48px;
}
h3 {
  font-size: 36px;
}
h4 {
  font-size: 30px;
}
h5 {
  font-size: 24px;
}
h6 {
  font-size: 21px;
}

/* Links */
a {
  color: #d1cec9;
  text-decoration: underline;
}
a:visited {
  color: #8e8b88;
}

blockquote,
aside {
  border-left: 5px solid gray;
  margin-left: 0;
  padding-left: 1em;
}

/* Code */
code,
pre {
  font-family: monospace;
  font-size: 95%;
  border: 1px dotted #ccc;
  padding: 0.4em 0.5em;

  /* wrap */
  white-space: pre-wrap;
  word-wrap: break-word;
}