html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: #08080f;
  overflow: hidden;
}
#frame {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, #10101e 0%, #08080f 70%);
}
#screen {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: #000;
  box-shadow: 0 0 60px rgba(90, 110, 200, 0.18);
}