html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: rgb(0, 0, 0);
  font-family: "Times New Roman", serif;
}

canvas {
  display: block;
}

#info {
  position: absolute;
  top: 12px;
  left: 16px;
  z-index: 10;
  color: rgba(143, 145, 31, 0.7);
  pointer-events: none;
}

#info h1 {
  margin: 0 0 6px 0;
  font-size: 22px;
  letter-spacing: 0.5px;
}

#info p {
  margin: 0;
  font-size: 14px;
  max-width: 520px;
  line-height: 1.35;
}

#audioBtn {
  position: absolute;
  top: 12px;
  right: 16px;
  z-index: 20;
  padding: 10px 12px;
  font-size: 14px;
  cursor: pointer;
  opacity: 0.88;
}

#audioBtn:disabled {
  cursor: default;
  opacity: 0.55;
}