body, html {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
}

.container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 80%;
  max-height: 80%;
  margin: 20px;
}