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

canvas {
  position: absolute;
}

.header {
  position: absolute;
  width: 75%;
  left: 50%;
  top: 15%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: deeppink;
}

.header .header-text {
  font-size: larger;
}

.footer {
  position: absolute;
  width: 80%;
  left: 50%;
  bottom: 10%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: lightpink;
}

.footer .chapter-text {
  width: 100%;
  text-align: right;
}