#scrollToTopBtn{bottom:20px;position:fixed;right:20px;z-index:9999}.scroll-to-top-button{background-color:#2a8ebf;border-radius:50%;color:#fff;display:block;font-size:36px;font-weight:700;height:60px;line-height:60px;text-align:center;text-decoration:none;transition:background-color .3s,opacity .3s;width:60px}.scroll-to-top-button:hover{background-color:#e57700}