* {
  font-family: Arial, Helvetica, sans-serif;
}

html, body {
  margin: 0;
  border: 0;
  padding: 0;
  background-color: #000;
  background-image: url("back.jpeg");
  background-position: top;
  background-repeat: no-repeat;
}

main {
  margin: auto;
  width: 50%;
  padding: 20px;
}

main > h1 {
  text-align: center;
  width: auto;
  height: auto;
  margin-top: auto;
  margin-bottom: auto;
  vertical-align: center;
  font-size: 3.5em;
  color: whitesmoke;
}