html, body {
  position: relative;
  
  width: 100vw;
  height: 100vh;

  max-width: 100vw;
  max-height: 100vh;

  overflow: hidden;
}

a, a:link, a:visited, a:hover, a:active {
  color: unset;
  text-decoration: none;
}

.z, .o, .t, .tt, .f {
  position: fixed;
}

.z {
  top: 24%;
  right: 4%;

  font-size: 36vh;
}

.o {
  bottom: 1%;
  left: 15%;

  font-size: 29vh;
}

.t {
  top: 50%;
  left: 50%;

  font-size: 37vh;

  transform: translate(-50%, -50%);
}

.tt {
  bottom: 59%;
  right: 25%;

  font-size: 15vh;
}

.f {
  bottom: 10%;
  left: 50%;

  font-size: 25vh;

  transform: translateX(-50%);
}