* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #050505;
}

.stage {
  width: 100vw;
  height: 100vh;
  display: grid;
  place-items: center;
}

canvas {
  display: block;
  width: min(100vw, calc(100vh * 16 / 9));
  height: min(100vh, calc(100vw * 9 / 16));
  background: #000;
  image-rendering: auto;
}