style.css

p caption {
  color: #777;
  margin-top: 10px;
}
p code {
  white-space: inherit;
}
pre {
  word-break: normal;
  word-wrap: normal;
}
pre code {
  white-space: inherit;
}
.summary > li:first-child {
    height: 100px;
    padding-top: 10px;
    border-bottom: 1px solid rgba(0,0,0,.07);
}
.book .book-summary ul.summary li.divider {
    height: 1px;
    width: 650px;
    color:#030727;
}
body {
  text-align: justify;
  font-size: 14px;
  font-family: "Century Gothic";
}
h1 { /* Header 1 */
  font-size: 28px;
  font-weight: bold;
  color: #030727;
}
h2 { /* Header 2 */
  font-size: 20px;
  font-weight: bold;
  font-family: "Century Gothic";
  color: #030727;
}
h3 { /* Header 3 */
  font-size: 16px;
  color: #030727;
}
.header-section-number::after {
  content: ".";
  padding-right: 14px;
}
/* Menu lateral*/
.navbar-nav .navbar-link .navbar-link active 
{
  font-family: "Century Gothic";
  color:grey;
  font-size: 100px;
  margin: 2px;
}
.sidebar {
    font-size: 12px;
    max-width: 100%;
}
.sidebar h1 {
    font-size: 1.0rem;
}
.sidebar li {
    margin-bottom: 0.5rem;
    font-size: 0.7rem;
    line-height: 1.5;
}

/*https://lokeshdhakar.com/projects/lightbox2/*/
<link href="/lightbox.css" rel="stylesheet" />