body {
  background-image: url('../images/Unveiling_distant_stars_and_galaxies 001.jpg');
  background-size: cover;
  margin: 30px 20px 20px 20px;
  text-align: center;
  font-family: helvetica, arial, sans-serif;
  color: #fff;
}

h1 {
  height: 60px;
  background-image: url('../images/ARRIVAL-logotype-003-295x60.png');
  background-position: center;
  background-repeat: no-repeat;
  text-indent: -9999px;
}

h2 {
  font-weight: normal;
}

a, a:visited  {
  color: #330066;
}

.credit {
  color: #333;
  font-size: small;
}