body,
html {
  height: 100%;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;
  overflow: hidden;
  background: radial-gradient(at 120% -20%, #fff, #17101f);
}
*,
body {
  margin: 0;
  padding: 0;
}
canvas {
  background: radial-gradient(at 120% -20%, #fff, #17101f);
}