.scroll-icon {
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    height: 2em;
    width: 1.2em;
    font-size: 22px;
    color: rgba(255, 255, 255, 0.5);
    border-radius: 2em;
    border: solid 2px;
    -webkit-transition: .4s;
    transition: .4s;
}

.scroll-icon::after {
    content: '';
    width: 5px;
    height: 5px;
    background-color: #fff;
    border-radius: 50%;
    -webkit-animation: scroll-icon 2.2s infinite cubic-bezier(0.65, 0.05, 0.36, 1);
    animation: scroll-icon 2.2s infinite cubic-bezier(0.65, 0.05, 0.36, 1);
}
@keyframes scroll-icon{0% {
    -webkit-transform:translateY(-12px);
            transform: translateY(-12px);
    opacity: 0;
  }
  30%, 70% {
    opacity: 1;
  }
  100% {
    -webkit-transform: translateY(12px);
            transform: translateY(12px);
    opacity: 0;
  };
}