html, body {
  height: 100%;
  margin: 0;
  background: #000;
  color: #cfd7ff;
  font: 14px/1.4 system-ui, sans-serif;
}

html.scroll-locked,
body.scroll-locked {
  overflow: hidden;
}

main {
  height: 500vh;
}

h3 {
  margin: 0.2rem 0 0;
  text-align: center;
  font-weight: 700;
}

p {
  margin: 0.1rem 0 0;
  opacity: 0.75;
  text-align: center;
}