body {
  margin: 0;
  padding: 3em 6em;
  color: black;
  max-width: 50em;
}

h1 {
  font-size: 22pt;
}

.underline {
  border-bottom: 3px solid #C44;
}

h2 {
  font-size: 14pt;
}

p.rel {
  padding-left: 2em;
  text-indent: -2em;
}

div.border {
  border: 1px solid black;
  padding: 3px;
}

code {
  font-family: courier, monospace;
  font-size: 90%;
  color: #144;
}

pre.code {
  margin: 1.1em 12px;
  border: 1px solid #CCCCCC;
  color: black;
  padding: .4em;
  font-family: courier, monospace;
}

.warn {
  color: #C00;
}

body {
  margin: 0;
  padding: 3em 6em;
  color: black;
  max-width: 50em;
}

h1 {
  font-size: 22pt;
}

.underline {
  border-bottom: 3px solid #C44;
}

h2 {
  font-size: 14pt;
}

h3 {
  font-size: 12pt;
}

p.rel {
  padding-left: 2em;
  text-indent: -2em;
}

div.border {
  border: 1px solid black;
  padding: 3px;
}

code {
  font-family: courier, monospace;
  font-size: 90%;
  color: #144;
}

pre.code {
  margin: 1.1em 12px;
  border: 1px solid #CCCCCC;
  color: black;
  padding: .4em;
  font-family: courier, monospace;
}

.warn {
  color: #C00;
}

Update codemirror ux to new version
Update codemirror ux to new version
