.arrow{transform:rotate(270deg);cursor:pointer}.arrow span{display:block;width:8px;height:8px;border-bottom:3px solid #fff;border-right:3px solid #fff;transform:rotate(45deg);animation:animate 2s infinite}@keyframes animate{0%{opacity:0;transform:rotate(45deg) translate(-5px,-5px)}50%{opacity:1}to{opacity:0;transform:rotate(45deg) translate(5px,5px)}}.arrow span:nth-child(2){animation-delay:-.2s}@media (max-width:768px){.arrow span{width:8px;height:8px;border-bottom:2px solid #fff;border-right:2px solid #fff}}