html {
  margin: 0;
  padding: 0;

  width: 100%;
  height: 100vh;

  text-align: center;

  color: #fff;
  background-color: #000;
}

.enter {
  padding: 4px;

  color: #fff;

  border: 3px double #ff0;
  border-radius: 4px;

  background-color: #000;

  text-decoration: none;
}

.contact {
  color: #999;
}

img {
  margin-top: 16px;
}