html,
body {
  height: 100%;
}

body {
  color: white;
  background-color: black;
  font-family: sans-serif;
  display: flex;
  flex-direction: column;
  padding-left: 15%;
  padding-right: 15%
}

main {
  flex: 1 0 auto;
}

pre {
  display: inline-block;
  font-family: monospace;
  white-space: pre;
  margin: 1em 0;
  width: 40;
}