body {
  background-color: black;
  margin: 0px;
}

#shuffle-string {
  position: absolute;
  left: 10%;
  top: 90%;

  width: 80%;
  height: 8%;

  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 2.8vh;
  font-family: monospace;

  background-color: rgba(0, 0, 0, 0.8);
  color: red;
  border-radius: 4vh;
}