.smooth-back-to-top-button{bottom:50px;height:46px;width:46px;border-radius:46px;background-color:#fff;box-shadow:inset 0 0 0 2px #ccc}.smooth-back-to-top-button.btn-left-side{left:50px}.smooth-back-to-top-button.btn-right-side{right:50px}.smooth-back-to-top-button.btn-center{inset-inline:0;margin-inline:auto}.smooth-back-to-top-button::after{height:100%;color:#1f2029;font-size:24px;content:"";line-height:normal;position:relative;display:flex;align-items:center;justify-content:center}.smooth-back-to-top-button:hover::after{color:#1f2029}