.mouse{width:30px;height:50px;border:2.5px solid #fff;border-radius:60px;position:relative;&:before{content:"";width:7px;height:7px;position:absolute;top:10px;left:50%;transform:translateX(-50%);background-color:#fff;border-radius:50%;opacity:1;animation:wheel 2s infinite;-webkit-animation:wheel 2s infinite}}@keyframes wheel{to{opacity:0;top:30px}}@-webkit-keyframes wheel{to{opacity:0;top:30px}}