a {
  margin: auto;
  text-align: center;
  width: 30%;
}
#date {
  margin: auto;
  text-align: center;
  width: 30%;
}
#images {
  display: block;         /* ensures margin auto works */
  margin: 20px auto;      /* centers horizontally */
  max-width: 80%;         /* scales image relative to page */
  height: auto;           /* keeps aspect ratio */
}