.arrow a {
  position:absolute;
  bottom:20px;
  left:50%;
  z-index:10;
  display:inline-block;
  -webkit-transform:translate(0, -50%);
  transform:translate(0, -50%);
  color:#fff;
  font:normal 400 20px/1 'Josefin Sans', sans-serif;
  letter-spacing:.1em;
  text-decoration:none;
  transition:opacity .3s;
}

.arrow a:hover {
  opacity:.5;
}

#section05 a {
  padding-top:70px;
}

#section05 a span {
  position:absolute;
  top:0;
  left:50%;
  width:35px;
  height:35px;
  margin-left:-12px;
  border-left:2px solid #fff;
  border-bottom:2px solid #fff;
  -webkit-transform:rotate(-45deg);
  transform:rotate(-45deg);
  -webkit-animation:sdb05 1.5s infinite;
  animation:sdb05 1.5s infinite;
  box-sizing:border-box;
}

@keyframes sdb05 {
  0% {
    transform:rotate(-45deg) translate(0, 0);
    opacity:0;
  }
  50% {
    opacity:1;
  }
  100% {
    transform:rotate(-45deg) translate(-20px, 20px);
    opacity:0;
  }
}