#guestbookSection {
  text-align: center;
}
#guestbookSection a {
  margin-right: 5px;
}
#guestbookEmbed {
  border: 3px solid #6c86e6;
  box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.253);
  margin-top: 12px;
  width: 96.7%;
  height: 620px;
}