html-grahnska.se/style.css

body {
  position: relative;
  height: 100%;
}

.logo {
  position: absolute;
  top: 50%;
  left: 50%;
  font-family: monospace;
  font-size: 5vw;
}

.logo span.hidden {
  color: #FFFFFF;
}

.logo a {
  color: #DD0000;
  text-decoration: none;
}