section {
  background: #000;
  color: #fff;
  padding: 1em;
  font-size: 1em;
  font-family: "Helvetica Neue","Trebuchet MS",sans-serif;
  text-rendering: optimizeLegibility;
  height:90%;
  display:block;
  overflow:hidden;
  width:90%
}


h1, h2, h3, h4 {
  font-family: "Contrail One";
  line-height:1.2em;
  margin-top:0px;
  margin-bottom:0.2em;
}

h1 {
  font-size: 2em;
  margin-top:0px;
  line-height:1.2em;
}

h2 {
  font-size: 1.5em;
}

h3 {
  font-size: 1.5em;
  margin:0.3em;
  text-align:center;
}

h4 {
  font-size: 1.2em;
  margin-bottom:0.1em;
padding-top:0.2em;
}
pre {
  font-size: 0.7em;
line-height:1.2em;
  margin-bottom:0.7em;

}