.mouse{display:block;width: 18px !important;height: 30px;border:1px solid #fff;border-radius: 9px}
.mouse:after{display:block;content:"";width:4px;height:4px;margin:8px auto;background: #fff;border-radius: 2px;animation:scroll 1s infinite both}
@keyframes scroll{ 0%{opacity:1;transform:translateY(0px)} 100%{opacity:0;transform:translateY(16px)}}