* {
  margin: 0;
}

body {
  overflow: hidden;
}

main {
  background: black;
  transform-origin: top left;
  image-rendering: pixelated;
}

.textbox {
  padding: 4px 0;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

.textbox.-enter {
  animation: slidein 0.5s;
}

.textbox.-exit {
  animation: slideout 0.25s ease-in;
}

@keyframes slidein {
  from { transform: translate(-50%, 100%); }
  to { transform: translate(-50%, 0); }
}

@keyframes slideout {
  from { transform: translate(-50%, 0); }
  to { transform: translate(-50%, 100%); }
}