html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background-color: #f0f0f0;
}

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

img {
  width: 100%;
  height: auto;
  max-width: 100vw;
  max-height: 100vh;
  object-fit: contain;
}