.backtotop{position:fixed;position:sticky;right:15px;bottom:15px;z-index:1029;margin:0 0 0 auto;background-color:var(--bs-primary);color:#fff;cursor:pointer;width:60px;--height: 60px;height:var(--height);margin-top:calc(var(--height) * -1);padding:0!important;display:flex;justify-content:center;align-items:center;font-size:28px;box-shadow:0 5px 6px rgba(0,0,0,.16);transition:opacity .3s ease-in-out}.backtotop:after{content:unset}