body {
  margin: 0;
}

section {
  width: 100%;
  height: 100vh;
  position: relative;
}

section img {
  display: block;
  max-width: 1200px;
  width: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

@media screen and (max-width: 768px) {
  section img {
    width: 86%;
  }
}