a,
a:focus,
a:hover {
  color: #fff;
  text-decoration: underline;
}

html,
body {
  height: 100%;
  color: #fff;
  font-size: 16px;
  background: #212733;;
}
main {
  text-align: center;
  max-width: 900px;
  padding: 2rem;
}
main img {
  max-width: 60%;
}
.copyright {
  color: rgba(255, 255, 255, 0.6);
}