body {
  background-image: url("/media/img/mail-box.jpg");
  background-size: cover;
  background-color: black;
  color: #2200ff;
  font-family: Fira;
}
.flicker {
  animation: blink-animation 1s steps(5, start) infinite;
}
.nav-page-col-box {
  column-count: 3;
}