.buttonTop{cursor:pointer;position:fixed;bottom:120px;right:12px;z-index:1;width:48px;height:48px;border:1px solid #000;border-radius:100%;display:flex;justify-content:center;align-items:center}.buttonTop:before{position:absolute;top:17px;content:"";display:block;width:20px;height:20px;border-left:2px solid #000;border-bottom:2px solid #000;transform:rotate(135deg)}