html {
  margin: 0;
}

body {
  margin: 0;
}

.logo {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
  max-height: -moz-available;
  max-height: -webkit-fill-available;
  max-height: fill-available;
}