.cn-back-to-top{position:fixed;bottom:125px;right:40px;width:50px;height:50px;background-color:#212a34;color:#fff;border:none;border-radius:50%;font-size:24px;line-height:50px;text-align:center;cursor:pointer;z-index:1000;opacity:.8;transition:opacity .3s,transform .3s}.cn-back-to-top svg{fill:#fff;width:20px;height:20px}@media(max-width: 768px){.cn-back-to-top{bottom:85px;right:17px}}.cn-back-to-top:hover{opacity:1;transform:translateY(-3px)}.cn-back-to-top:focus{outline:none}