html,
body {
  margin: 0;
  height: 100%;
  background-color: #f6f1e6;
}

img.logo {
  min-width: 250px;
  max-width: 300px;
}

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