html, body {
  height: 100%;
  width: 100%;
  padding: 0;
  margin: 0;
}

body {
  color: #444;
  font-family: sans-serif;
}

a {
  color: #444;
}

p {
  margin-top: 0;
  margin-bottom: 0.3em;
}

main {
  position: relative;
  top: 50%;
  transform: translateY(-50%);
  text-align: center;
}

main img {
  width: 400px;
  height: 600px;
  margin-bottom: 30px;
}