* {
  margin: 0;
  padding: 0;
}
html {
  background: rgb(1, 1, 1);
}
html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}
main {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
canvas {
  max-width: 100vw;
  max-height: 100vh;
}