@font-face {
    font-family: 'FT88Serif';
    src: url('ft88-serif.ttf')
    format('truetype');
}
body {
  margin: 0;
  overflow: hidden;
  background: hsl(0, 0%, 0%);
}

h1#toggle-text {
  position: fixed;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  color:  rgb(101, 244, 184);
  font-family: 'FT88Serif', serif;
  font-size: 1.5rem;
  text-align: center;
  margin: 0;
  pointer-events: none;
}

canvas {
  display: block;
}

.btn {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgb(101, 244, 184);
  cursor: pointer;
  transition: background 0.3s;
}

.btn:hover {
  background: honeydew;
  opacity: 1;
}