body {
  margin: 0;
  padding: 0;
  font-family: Helvetica, Arial, sans-serif;
  background-color: #f0f0f0;
}
.image-container {
  margin: 3em;
  display: flex;
  justify-content: center;
  align-items: center;
}
.image-container img {
  max-width: 50%;
  height: 100%;
}