.scroll-down-button {
  position: absolute;
  height: 10em;
  width: 6.25em;
  border: 0.5em solid #ffffff;
  margin: auto;
  top: 0;
  left: 0;
  right: 0;
  border-radius: 3em;
  font-size: 6pt;
}
.scroll-down-button:before {
  position: absolute;
  content: "";
  margin: auto;
  left: 0;
  right: 0;
  top: 1.2em;
  height: 1.2em;
  width: 1.2em;
  background-color: #ffffff;
  border-radius: 50%;
  animation: move-down 2s infinite;
}
@keyframes move-down {
  80% {
    opacity: 0.5;
  }
  100% {
    transform: translateY(5.3em);
    opacity: 0;
  }
}