body {
  margin: 0;
  background: #000;
  overflow: hidden;
}

iframe {
  width: 50vw;
  height: 50vh;
  border: 0;
  position: absolute;
  z-index: 1;
}

input {
  width: 50vw;
  height: 50vh;
  z-index: 2;
  position: absolute;
  border: 0;
  background: transparent;
  cursor: default;
  outline: none;
  caret-color: transparent;
  padding: 0;
}

input:nth-of-type(5) {
  width: 100vw;
  height: 100vh;
  z-index: 3;
  font-size: 5.5vh;
  font-family: Calibri;
  text-align: center;
}
::placeholder {
  color: 808080;
}