html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-size: 16px;
  font-family: sans-serif;
}

body {
  background-color: black;
}

.container {
  width: 100vw;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.container > img {
  width: 80%;
  max-width: 512px;
  min-width: 256px;
}