.section-image > img {
  display: block;
  max-width: 50%;
  height: auto;
  padding: 20px;
  margin: 0 auto;
}
#intro {
  color: white;
  background-color: green;
}
#content {
  background-color: #eeeeee;
}
#checkout {
  background-color: #dddddd;
  opacity: 1;
  color: black;
}