.arrow{text-align:center;margin:0}.arrow.bounce{animation:2s infinite bounce}.arrow>span{cursor:pointer;opacity:.5;transition:opacity .3s}.arrow>span:hover{opacity:1}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0)}40%{transform:translateY(-10px)}60%{transform:translateY(-5px)}}