html {
  background: #fff;
}

body {
  margin: 0;
}

main {
  box-sizing: border-box;
  display: grid;
  min-height: 100vh;
  min-height: 100svh;
  padding: 24px;
  place-items: center;
}

img {
  display: block;
  width: min(600px, 100%);
  height: auto;
}