.scroll_box{width:60px;height:60px}.scroll_box .scroll{border:2px solid #918e8c;border-radius:60px;width:24px;height:45px;position:relative}.scroll_box .scroll:after{content:"";background-color:#918e8c;border-radius:6px;width:6px;height:9px;animation:2s infinite scrollAnimation;position:absolute;top:8px;left:calc(50% - 3px)}@keyframes scrollAnimation{0%{opacity:0}30%{transform:translateY(0)}70%{opacity:1;transform:translateY(15.5px)}to{opacity:0;transform:translateY(15.5px)}}