.icon-scroll,
.icon-scroll:before {
  position: absolute;
  left: 50%;
}
.icon-scroll {
  width: 27px;
  height: 70px;
  margin-left: -20px;
  top: 50%;
  /* margin-top: -35px; */
  margin-top: 30px;
  /* box-shadow: inset 0 0 0 1px #fff; */
  border-radius: 25px;
  opacity: 0.4;
}
.icon-scroll:before {
  content: '';
  width: 8px;
  height: 8px;
  background: #fff;
  margin-left: -4px;
  top: 8px;
  border-radius: 4px;
  -webkit-animation-duration: 3s;
          animation-duration: 3s;
  -webkit-animation-iteration-count: infinite;
          animation-iteration-count: infinite;
  -webkit-animation-name: scroll;
          animation-name: scroll;
}
/* @-webkit-keyframes scroll {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    -webkit-transform: translateY(46px);
            transform: translateY(46px);
  }
}
@keyframes scroll {
  0% {
    opacity: 0.5;
  }
  100% {
    opacity: 0;
    -webkit-transform: translateY(46px);
            transform: translateY(46px);
  }
} */

.icon-scroll:after {
  position: absolute;
  bottom: -18px;
  left: 50%;
  width: 18px;
  height: 18px;
  content: '';
  margin-left: -9px;
  border-left: 1px solid #fff;
  border-bottom: 1px solid #fff;
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
  box-sizing: border-box;
  -webkit-animation-duration: 3s;
  animation-duration: 3s;
-webkit-animation-iteration-count: 1;
  animation-iteration-count: 1;
-webkit-animation-name: scroll2;
  animation-name: scroll2;
}




/* ----------------------- */

@-webkit-keyframes scroll {
  0% {
    -webkit-transform: translate(0, 0);
    opacity: 0;
  }
  40% {
    opacity: 0.6;
  }
  80% {
    -webkit-transform: translate(0, 46px);
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
@keyframes scroll {
  0% {
    transform: translate(0, 0);
    opacity: 0;
  }
  40% {
    opacity: 0.6;
  }
  80% {
    transform: translate(0, 46px);
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

/* --------------------- */
@-webkit-keyframes scroll2 {
  0% {
    opacity: 0;
  }
  40% {
    opacity: 0.7;
  }
  80% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
@keyframes scroll2 {
  0% {
    opacity: 0;
  }
  40% {
    opacity: 0.7;
  }
  80% {
    opacity: 0;
  }
  100% {
    opacity: 0.7;
  }
}