html {
  color-scheme: light dark;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

main {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 90vh;
  width: 100%;
}

main a {
  display: block;
  width: 80vmin;
  height: 80vmin;
  max-width: 90%;
  cursor: pointer;
}

main svg {
  width: 100%;
  height: 100%;
}