html,

body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  background: black;
}
  


* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}



body, html {
  height: 100vh;
}
body {
  background: #000;
  display: grid;
  margin: 0;
}
canvas {
  --w: min(100vh, 100vw);
  margin: auto;
  height: var(--w) !important;
  width: var(--w) !important;
}