html {
  font-size: 10px;
}
body {
  margin: 2rem;
  font-family: Mark Pro Book,Helvetica,Arial,sans-serif;
  font-size: 1.6rem;
}

#contents {
  width: 90%;
  margin: 1em auto;
  padding: 1em;
}
#contents > * {
  display: block;
  width: 100%;
  margin: 1em 0;
}

#contents > header {
  margin: 0;
}
#contents > header > a {
  text-decoration: none;
}
#contents > header > a > h1 {
  display: inline-block;
  color: #ed2324;
  font-size: 2rem;
  margin: 0;
}

#contents > textarea {
  height: 15em;
}