.centered {
  text-align: center;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.words {
  font-size: 10em;
}

html {
  background: url("purty_wood_@2X.png") repeat;
  font-family: 'Noto Serif JP', serif;
}