style.css

body {
  line-height: 1.5;
}
blockquote {
  color: #777;
  border-left: 5px solid;
  padding-left: 1em;
  font-style: italic;
}
.content {
  max-width: 700px;
  margin: 0 auto;
  text-align: justify;
  font-size: 14px;
}
.content > header {
  font-size: 1.2em;
  text-align: center;
}
.authors {
  list-style: none;
  margin: 0;
  padding: 0;
}
.authors li {
  display: inline-block;
  padding: 10px 1em;
}
.abstract {
  font-size: 0.95em;
  padding: 3em;
  line-height: 1.2em;
}
.abstract: before {
  content: "Abstract";
  font-weight: bold;
  text-align: center;
  display: block;
}
table {
  border-collapse: collapse;
  border: 2px solid;
}
td,
th {
  border: 2px solid;
  padding: 5px;
  box-shadow: inset 0 1px 1px white;
}
th {
  text-align: center;
}
.highlighter {
  position: absolute;
  border-bottom: 2px solid orangered;
  top: -10px;
  left: 2%;
  width: 96%;
  box-shadow: 0 1px 1px white;
}
.last-change-marker {
  box-shadow: 1px 0 0 1px rgba(255, 69, 0, 0.5);
}
img {
  width: 80%;
  margin: 0 auto;
  display: block;
}
figure {
  padding: 1em 0;
}
figcaption {
  text-align: center;
  width: 100%;
}
h1, h2, h3 {
  text-align: center;
}
h1 {
  margin: 0.6em 0;
  font-size: 2.5em;
  line-height: 1.5em;
}
h2 {
  margin: 0.8em 0;
  font-size: 1.7em;
  line-height: 0.8em;
}
h3 {
  margin: 1em 0;
  font-size: 1.5em;
  line-height: 1em;
}
h4 {
  margin: 1em 0;
  font-size: 1.2em;
  line-height: 1.2em;
}
h5 {
  margin: 1.3em 0;
  font-size: 1.1em;
  line-height: 1.3em;
}
h6 {
  margin: 1.5em 0;
  font-size: 1em;
  line-height: 1.5em;
}
.antique body {
  background: -webkit-linear-gradient(top, rgba(250, 235, 215, 0.3), rgba(250, 235, 215, 0.3)), url("fabric_plaid.png");
  font-family: Overlock, Georgia;
  color: #333;
  text-shadow: 0 1px 1px #fff;
}
.math {
  font-family: Palatino;
}