body {
  background-color: white;
  padding: 0;
  margin: 0;
  width: 400px;
  height: 600px;
  overflow: hidden;
}

#highscore {
  position: absolute;
  left: calc(-100px);
  top: calc(-100px);
  width: 5px;
  display: none;
}

canvas {
  margin-left: 0 !important;
  margin-right: 0 !important;
}

.banner {
  opacity: 0;
  transition: opacity 0.5s;
  left: 0;
}

.banner.visible {
  opacity: 1;
  left: -152px;
  transition: opacity 1s, left linear 4s;
}