body {
  background-color: black;
  color: black;
  font-family: Verdana;
}

img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 40%;
}

.fade-in-image { animation: fadeIn 5s; }

@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}