html,
body {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  color: rgb(217, 21, 21);
  background-color: rgb(0, 0, 0);
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0;
  padding: 0;
  ;
}

canvas {
  object-fit: contain;
  max-height: 100%;
  max-width: 100%;
}

#fullScreen {
  display: flex;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  justify-content: center;
  align-items: center;
}

#fullScreen canvas {
  object-fit: contain;
  max-height: 100%;
  max-width: 100%;
}

#progress {
  color: rgb(255, 255, 255);
  background-color: rgb(0, 0, 0);
  padding-top: 50%;
  width: 100%;
  height: 100%;
  font-size: 0.8em;
  position: fixed;
  text-align: center;
  justify-content: center;
  align-items: center;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

#progress h2 {
  display: block;
  color: aqua;
}

#progress p {
  display: block;
  margin: 1em
}
#progress hr {
 width: 50%
}